KR20240049705A - Display dvice - Google Patents

Abstract

A display device is provided. A display device according to an embodiment includes a substrate, a light-emitting device layer disposed on the substrate and including light-emitting devices, an encapsulation layer disposed on the light-emitting device layer, and a sensor electrode layer disposed on the encapsulation layer, and the sensor electrode layer. is a plurality of first touch electrode groups extending along a first direction and arranged along a second direction intersecting the first direction, a plurality of first touch electrode groups arranged along the first direction in each of the plurality of first touch electrode groups. first touch electrodes, a plurality of second touch electrode groups extending along the second direction and arranged along the first direction, a plurality of one of the first touch electrode groups among the plurality of first touch electrode groups. A first contact electrode connected to a first touch electrode among the first touch electrodes, and a first touch electrode connected to a first touch electrode of another first touch electrode group among the plurality of first touch electrode groups. It includes a second contact electrode connected to the touch electrode, and the area of the first contact electrode is larger than the area of the second contact electrode.

Description

Display device {DISPLAY DVICE}

The present invention relates to a display device.

Depending on the driving method of the display panel, display devices include liquid crystal display (LCD), organic light emitting dioD display (OLED display), plasma display panel (PDP), and electrophoresis. It is classified as a display device (electrophoretic display), etc.

A sensing unit is a type of information input device and may be provided and used in a display device. The touch sensor may be attached to one side of the display panel of the display device or may be manufactured integrally with the display panel. The user can input information by pressing or touching the sensing unit while viewing the image displayed on the screen of the display device.

The problem to be solved by the present invention is to reduce the difference in touch sensitivity of the touch sensor that occurs when the sensing connection wires connected to the touch electrode and the flexible circuit board and disposed in the display area of the display panel have different lengths.

The problems of the present invention are not limited to the problems mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art from the description below.

A display device according to an embodiment for solving the above problem includes a substrate, a light-emitting device layer disposed on the substrate and including light-emitting devices, an encapsulation layer disposed on the light-emitting device layer, and disposed on the encapsulation layer. a sensor electrode layer, the sensor electrode layer extending along a first direction, a plurality of first touch electrode groups arranged along a second direction intersecting the first direction, the plurality of first touch electrode groups a plurality of first touch electrodes arranged along the first direction, a plurality of second touch electrode groups extending along the second direction and arranged along the first direction, each of the plurality of first touch electrode groups arranged along the first direction, A first contact electrode connected to any one of the first touch electrodes of the plurality of first touch electrodes of any one of the first touch electrode groups, and another of the plurality of first touch electrode groups. and a second contact electrode connected to one of the first touch electrodes among the plurality of first touch electrodes of another first touch electrode group, wherein the area of the first contact electrode is the area of the second contact electrode. bigger than

The display device further includes a first connection wire connected to the first contact electrode and a second connection wire connected to the second contact electrode, and the sensor electrode layer includes a sensing area and a peripheral area surrounding the sensing area. In the sensing area, the first connection wire and the second connection wire extend along the second direction, and the length of the first connection wire in the second direction is and the first connection wire of the second connection wire. It can be longer than the length in two directions.

The first contact electrode and the second contact electrode are disposed on a different layer from the first touch electrode and the second touch electrode, and the first contact electrode and the second contact electrode are connected to the first connection wire and the second touch electrode. 2 Can be placed on the same layer as the connecting wiring.

The display device further includes a plurality of dummy electrodes located on the same layer as second touch electrodes included in each of the plurality of first touch electrodes and the plurality of second touch electrode groups, and Each of the touch electrodes includes a first opening, each of the plurality of second touch electrodes includes a second opening, the plurality of dummy electrodes are respectively located in the first opening and the second opening, and the plurality of touch electrodes each include a second opening. The dummy electrodes may overlap the first contact electrode and the second contact electrode.

The first contact electrode includes a first electrode opening and a first contact electrode portion surrounding the first electrode opening, and the second contact electrode includes a second electrode opening and a second contact electrode surrounding the second electrode opening. and an area of the first contact electrode portion may be larger than an area of the second contact electrode portion.

The plurality of dummy electrodes overlap each of the first electrode opening and the second electrode opening,

The plurality of dummy electrodes may non-overlap with each of the first contact electrode portion and the second contact electrode portion.

A display device according to another embodiment for solving the above problem includes a substrate, a light-emitting device layer disposed on the substrate and including light-emitting devices, an encapsulation layer disposed on the light-emitting device layer, and disposed on the encapsulation layer. a sensor electrode layer, the sensor electrode layer extending along a first direction, and a plurality of first touch electrodes arranged along a second direction intersecting the first direction, extending along the second direction, A plurality of second touch electrodes arranged along the first direction, first dummy electrodes located on the plurality of first touch electrodes and the plurality of second touch electrodes, and the plurality of first touch electrodes a contact electrode connected to one of the first touch electrodes, located on one of the first touch electrodes, having a different area from the first dummy electrodes and overlapping with the contact electrode, and being connected to the first dummy electrodes. a second dummy electrode surrounded by a second dummy electrode, a first touch electrode portion surrounding the first dummy electrode in one of the first touch electrodes, and a second touch electrode portion surrounding the first dummy electrodes in other of the first touch electrodes. It includes an electrode part, and a third touch electrode part surrounding the first dummy electrodes in the second touch electrodes.

The sensor electrode layer includes a sensing area and a peripheral area surrounding the sensing area, a connection wire connected to the contact electrode in the sensing area and extending in the second direction, and disposed on the connection wire in the sensing area. It may further include a dummy pattern, and the dummy pattern may be arranged in an island shape on a plane along the second direction.

The width of the first touch electrode portion may be larger than the width of the second touch electrode portion and the width of the third touch electrode portion.

The display device further includes the second dummy electrode located on the other first touch electrodes and surrounded by the first dummy electrodes, wherein the width of the first touch electrode portion and the width of the second touch electrode portion are is the same, and the width of the first touch electrode portion and the width of the second touch electrode portion may be larger than the width of the third touch electrode portion.

A display device according to another embodiment for solving the above problem includes a substrate, a light-emitting device layer disposed on the substrate and including light-emitting devices, an encapsulation layer disposed on the light-emitting device layer, and on the encapsulation layer. It is disposed and has a sensor electrode layer including a sensing area and a peripheral area surrounding the sensing area, wherein the sensor electrode layer extends along a first direction and is arranged along a second direction intersecting the first direction. first touch electrode groups, a plurality of first touch electrodes arranged along the first direction in each of the plurality of first touch electrode groups, extending along the second direction, and extending along the first direction. A plurality of second touch electrode groups arranged, a first touch electrode connected to one of the plurality of first touch electrodes of the first touch electrode group. 1 contact electrode, a second contact electrode connected to one of the first touch electrodes of the plurality of first touch electrodes of another first touch electrode group among the plurality of first touch electrode groups, and the sensing A first connection wire connected to the first contact electrode in the area, and a second connection wire connected to the second contact electrode in the sensing area, the area of the first contact electrode and the second contact electrode The area is the same.

The width of the first connection wire may be larger than the width of the second connection wire.

The first connection wire includes a plurality of first protrusions, the second connection wire includes a plurality of second protrusions, and the number of first protrusions of the first connection wire is equal to the second number of the second connection wire. There may be more than the number of protrusions.

The first connection wire includes a plurality of first protrusions, the second connection wire includes a plurality of second protrusions, the number of the first protrusions is the same as the number of the second protrusions, and the first connection wire includes a plurality of second protrusions. The planar area of each of the protrusions may be larger than the planar area of each of the second protrusions.

The first connection wire extends in the second direction, and the second connection wire includes a plurality of first sub-connection wires extending in the second direction, a plurality of first sub-connection wires extending in the first direction from an end of the first sub-connection wire, and a plurality of second sub-connection wires extending in a third direction diagonal to the second direction, and a plurality of third sub-connections extending from an end of the second sub-connection wire in a fourth direction perpendicular to the third direction. May include wiring.

The plurality of second sub-connection wires and the plurality of third sub-connection wires may intersect each other on a plane.

The length of the first connection wire and the length of the second connection wire may be the same.

The second connection wire includes a first sub-connection wire extending in one direction of the second direction, a second sub-connection wire extending in the other direction of the second direction and connected to the second contact electrode, and the first sub-connection wire. It includes a third sub-connection wire connecting a first sub-connection wire and the second sub-connection wire, and the first sub-connection wire of the second connection wire and the second sub-connection wire of the second connection wire are The first length overlapping in the second direction may be equal to the difference between the lengths of the first sub-connection wire of the first connection wire and the second connection wire.

The display device includes a third contact electrode connected to one of the first touch electrodes of another first touch electrode group among the plurality of first touch electrode groups, and It further includes a third connection wire connected to three contact electrodes and extending along the second direction, wherein the third connection wire includes a first sub-connection wire extending in one direction of the second direction, and the second sub-connection wire. extending in the other direction and comprising a second sub-connection wire connected to the third contact electrode, and a third sub-connection wire connecting the first sub-connection wire and the second sub-connection wire, 1 The difference between the length and the second length overlapping between the first sub-connection wire of the third connection wire and the second sub-connection wire of the third connection wire in the second direction is the length of the first connection wire The length difference between the second connection wire and the first sub-connection wire may be the same, and the length of the third connection wire may be the same as the length of the second connection wire.

The display device further includes a plurality of dummy electrodes located on the same layer as the plurality of first touch electrodes, wherein the first connection wire includes a first sub-connection wire extending in one direction of the second direction, and the first sub-connection wire extends in one direction of the second direction. 1 A second sub-connection wire connected to the end of the sub-connection wire and bypassing the first touch electrode connected to the first contact electrode, and one end connected to the second sub-connection wire and the other end connected to the first touch electrode. a third sub-connection wire connected to a contact electrode, the third sub-connection wire connected to an end of the second sub-connection wire, a first portion extending in the one direction of the second direction; A second part connected to the end of the first part and extending along a third direction that is a diagonal direction intersecting the first direction and the second direction, connected to the end of the second part and along the first direction. An extending third part, connected to the end of the third part, a fourth part extending along a fourth direction perpendicular to the third direction, and extending in the other direction of the second direction, one end of which is It may include a fifth part connected to the ends of the four parts, and the other end connected to the first contact electrode.

The second connection wire is a first sub-connection wire extending in one direction of the second direction, is connected to an end of the first sub-connection wire, and bypasses the first touch electrode connected to the second contact electrode. A second sub-connection wire, one end of which is connected to the second sub-connection wire, and the other end of which includes a third sub-connection wire connected to the second contact electrode, wherein the third sub-connection wire is connected to the second sub-connection wire. A first part connected to an end of the first part extending in one direction of the second direction, connected to an end of the first part and disposed in the same column as the first touch electrode connected to the second contact electrode. A second part surrounding a side of one of a plurality of dummy electrodes, and extending toward the other side in the second direction, one end of which is connected to the end of the second part, and the other end of the dummy electrode. It may include a third part connected to the second contact electrode.

The plurality of dummy electrodes are disposed between the first touch electrode connected to the first contact electrode, a first dummy electrode adjacent in one direction of the second direction, and the first dummy electrode, and the first touch electrode is connected to the first contact electrode. and a second dummy electrode disposed to be spaced apart from the first touch electrode connected to the first touch electrode in one direction of the second direction, wherein the first portion of the third sub-connection wire overlaps the first dummy electrode. , the second part, the third part, and the fourth part of the third sub-connection wire overlap the second dummy electrode, and the fifth part of the third sub-connection wire overlaps the first dummy electrode. and may be disposed to be spaced apart from the first portion of the third sub-connection wire in the first direction.

The display device further includes a first dummy wire and a second dummy wire disposed in the sensing area, wherein the first dummy wire is symmetrical to the first sub-connection wire of the first connection wire in the first direction. A first sub-dummy wire, a second sub-dummy wire arranged symmetrically in the first direction with the second sub-connection wire of the first connection wire, and the third sub-connection wire of the first connection wire. and a third sub-dummy wire arranged symmetrically in the one direction of the second direction, wherein the second dummy wire is symmetrical to the first sub-connection wire of the second connection wire in the first direction. a first sub-dummy wire, a second sub-dummy wire arranged symmetrically in the first direction with the second sub-connection wire of the first connection wire, and the third sub-connection of the first connection wire. It may include a wire and a third sub-dummy wire arranged symmetrically in one direction of the second direction.

Specific details of other embodiments are included in the detailed description and drawings.

The display device according to one embodiment includes contact electrodes that are in contact with the sensing connection wires and the touch electrode in the display area of the display panel and have different areas depending on the length of the sensing connection wires, so that the length difference of the sensing connection wires is different. It is possible to reduce the difference in touch sensitivity of the touch sensor caused by

A display device according to another embodiment can reduce a difference in touch sensitivity of a touch sensor caused by a difference in the length of the sensing connection wires by varying the arrangement pattern of the sensing connection wires arranged in the display area.

Effects according to the embodiments are not limited to the content exemplified above, and further various effects are included in the present specification.

1 is a schematic plan view of a display device according to an exemplary embodiment.
Figure 2 is a schematic cross-sectional view taken along line Ⅰ-Ⅰ' of Figure 1.
FIG. 3 is a plan view showing configurations related to the display unit of FIG. 2.
FIG. 4 is a plan view showing components related to the sensing unit of FIG. 2.
Figure 5 is an enlarged view of area A of Figure 4.
Figure 6 is an enlarged view of area B of Figure 5.
Figure 7 is an enlarged view of area C of Figure 6.
Figure 8 is an enlarged view of area D of Figure 6.
Figure 9 is an enlarged view of area E of Figure 6.
Figure 10 is a cross-sectional view taken along line II-II' of Figure 6.
Figure 11 is a cross-sectional view taken along line III-III' of Figure 7.
FIG. 12 is a cross-sectional view taken along line IV-IV' of FIG. 8.
Figure 13 is a cross-sectional view taken along line V-V' of Figure 9.
FIG. 14 is an enlarged view of area C of FIG. 6 according to another embodiment.
FIG. 15 is an enlarged view of area D of FIG. 6 according to another embodiment.
Figure 16 is a cross-sectional view taken along line IV-IV' of Figure 14 according to another embodiment.
FIG. 17 is a cross-sectional view taken along line V-V' of FIG. 15 according to another embodiment.
FIG. 18 is a plan view showing components related to the sensing unit of FIG. 2 according to another embodiment.
FIG. 19 is a plan view showing components related to the sensing unit of FIG. 2 according to another embodiment.
FIG. 20 is a plan view showing components related to the sensing unit of FIG. 2 according to another embodiment.
Figure 21 is an enlarged view of area F of Figure 20 according to another embodiment.
FIG. 22 is an enlarged view of area G of FIG. 20.
Figure 23 is an enlarged view of area H of Figure 20.
Figure 24 is an enlarged view of area I of Figure 20.
Figure 25 is an enlarged view of area A of Figure 4 according to another embodiment.
Figure 26 is an enlarged view of area J of Figure 25.
Figure 27 is an enlarged view of area K of Figure 25.
FIG. 28 is a cross-sectional view taken along line VIII-VIII' of FIG. 27.
Figure 29 is an enlarged view of area A of Figure 4 according to another embodiment.
Figure 30 is a plan view showing a sensing area of a display device according to another embodiment.
Figure 31 is a plan view showing a sensing area of a display device according to another embodiment.
FIG. 32 is an enlarged view of area L of FIG. 31.
FIG. 33 is an enlarged view of area L of FIG. 31 according to another embodiment.
Figure 34 is a plan view showing a sensing area of a display device according to another embodiment.

The advantages and features of the present invention, and methods of achieving them, will become clear with reference to the embodiments described in detail below in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below and will be implemented in various different forms. The present embodiments only serve to ensure that the disclosure of the present invention is complete and that common knowledge in the technical field to which the present invention pertains is not limited. It is provided to fully inform those who have the scope of the invention, and the present invention is only defined by the scope of the claims.

When an element or layer is referred to as “on” another element or layer, it includes all cases where the other layer or other element is directly on top of or interposed between the other elements. Like reference numerals refer to like elements throughout the specification. The shape, size, ratio, angle, number, etc. disclosed in the drawings for explaining the embodiments are illustrative and the present invention is not limited to the details shown.

Although first, second, etc. are used to describe various components, these components are of course not limited by these terms. These terms are merely used to distinguish one component from another. Therefore, it goes without saying that the first component mentioned below may also be a second component within the technical spirit of the present invention.

Hereinafter, specific embodiments will be described with reference to the attached drawings.

1 is a plan view of a display device according to an embodiment. Figure 2 is a schematic cross-sectional view taken along line Ⅰ-Ⅰ' of Figure 1.

“Upper”, “top”, and “upper surface” refer to the upper direction, that is, the Z-axis direction, based on the display panel 100, and “lower”, “bottom”, and “lower surface” refer to the display panel 100. It points in the downward direction, that is, in the direction opposite to the Z-axis direction. Additionally, “left”, “right”, “top”, and “bottom” indicate the direction when the display panel 100 is viewed from a plane. For example, “left” refers to the opposite direction of the X-axis, “right” refers to the

1 and 2, the display device 10 is a device that displays moving images or still images, and is used in mobile phones, smart phones, tablet personal computers, and smart watches. (smart watch), watch phone, mobile communication terminal, electronic notebook, e-book, PMP (portable multimedia player), navigation, UMPC (Ultra Mobile PC), as well as portable electronic devices such as television, laptop, monitor, etc. , can be used as a display screen for various products such as billboards and the Internet of Things (IOT). The display device 10 may be any one of an organic light emitting display device, a liquid crystal display device, a plasma display device, a field emission display device, an electrophoretic display device, an electrowetting display device, a quantum dot light emitting display device, and a micro LED display device. . Hereinafter, the description will focus on the fact that the display device 10 is an organic light emitting display device.

The display device 10 according to one embodiment may include a display panel 100, a display driving circuit 200, a circuit board 300, and a touch driving circuit 400.

The display panel 100 may include a main area MA and a protruding area PA protruding from one side of the main area MA.

In one embodiment, the main area MA is formed as a rectangular plane having a short side in the first direction (X-axis direction) and a long side in the second direction (Y-axis direction) that intersects the first direction (X-axis direction). It can be. A corner where the short side in the first direction (X-axis direction) and the long side in the second direction (Y-axis direction) meet may be rounded to have a predetermined curvature or may be formed at a right angle. However, the planar shape of the display device 10 is not limited to a square, and in some embodiments, the planar shape of the display device 10 may have other polygonal, circular, or oval shapes.

Additionally, the main area MA may be formed flat, but is not limited thereto, and may include curved portions formed at left and right ends in some embodiments. When the main area MA includes a curved portion, the curved portion may have a constant curvature or a changing curvature.

The main area (MA) may include a display area (DA) in which pixels are formed to display an image, and a non-display area (NDA) that is a surrounding area of the display area (DA).

In the display area DA, not only pixels but also scan lines, data lines, and power lines connected to the pixels may be disposed. When the main area MA includes a curved portion, the display area DA may be disposed on the curved portion. When the display area DA is disposed on a curved surface, the image of the display panel 100 may be visible even on the curved surface.

The non-display area NDA may be defined as an area from the outside of the display area DA to the edge of the display panel 100. A scan driver for applying scan signals to scan lines and link lines connecting data lines and the display driver circuit 200 may be disposed in the non-display area NDA.

The protruding area PA may protrude from one side of the main area MA. For example, the protruding area PA may protrude from the lower side of the main area MA as shown in FIG. 2 . The length of the protruding area PA in the first direction (X-axis direction) may be smaller than the length of the main area MA in the first direction (X-axis direction).

The protruding area PA may include a bending area BA and a pad area PDA. The pad area PDA may be placed on one side of the bending area BA, and the main area MA may be placed on the other side of the bending area BA. For example, the pad area PDA may be placed below the bending area BA, and the main area MA may be placed above the bending area BA.

The display panel 100 may be flexibly formed to be curved, curved, bent, folded, or rolled. Therefore, the display panel 100 may be bent in the thickness direction (Z-axis direction) in the bending area BA. When the display panel 100 is bent in the thickness direction (Z-axis direction), one side of the pad area (PDA) of the display panel 100 faces downward. Because of this, the pad area PDA is disposed below the main area MA and may overlap with the main area MA.

Pads electrically connected to the display driving circuit 200 and the circuit board 300 may be disposed in the pad area (PDA) of the display panel 100 .

The display driving circuit 200 outputs signals and voltages for driving the display panel 100. For example, the display driving circuit 200 may supply data voltages to data lines. Additionally, the display driving circuit 200 may supply power voltage to the power line and scan control signals to the scan driver. The display driving circuit 200 is formed as an integrated circuit (IC) and is connected to the display panel 100 in the pad area (PDA) using a chip on glass (COG) method, a chip on plastic (COP) method, or an ultrasonic bonding method. It may be mounted on the top, but is not limited to this. For example, the display driving circuit 200 may be mounted on the circuit board 300.

The pads may include display pads electrically connected to the display driving circuit 200 and sensing pads electrically connected to connection wires.

Circuit board 300 may be attached to the pads using an anisotropic conductive film. Because of this, the lead lines of the circuit board 300 may be electrically connected to the pads. The circuit board 300 may be a flexible printed circuit board, a printed circuit board, or a flexible film such as a chip on film.

The touch driving circuit 400 may be connected to sensing electrodes of the sensing layer (TSL) of the display panel 100, which will be described later. The touch driving circuit 400 applies driving signals to the sensing electrodes of the sensing layer (TSL) and measures mutual capacitance values of the sensing electrodes. The driving signal may be a signal having a plurality of driving pulses. The touch driving circuit 400 may determine whether the user is touching or being in proximity, etc., based on mutual capacitance values. The user's touch refers to when an object, such as the user's finger or pen, directly touches one surface of the display device 10 disposed on the sensing layer (TSL). The user's proximity indicates that an object, such as the user's finger or pen, is hovering away from one surface of the display device 10.

The touch driving circuit 400 may be disposed on the circuit board 300 . The touch driving circuit 400 may be formed as an integrated circuit (IC) and mounted on the circuit board 300.

The display panel 100 includes a display unit (DU) having a substrate (SUB), a thin film transistor layer (TFTL), a light emitting element layer (EML), and a thin film encapsulation layer (TFEL) disposed on the substrate (SUB), and a sensing unit (DU). It may include a sensing unit (TDU) with a layer (TSL).

The substrate (SUB) may be made of an insulating material such as glass, quartz, or polymer resin. Examples of polymer materials include polyethersulphone (PES), polyacrylate (PA), polyarylate (PAR), polyetherimide (PEI), and polyethylene napthalate (PEN). , polyethylene terephthalate (PET), polyphenylene sulfide (PPS), polyallylate, polyimide (PI), polycarbonate (PC), cellulose triacetate (CAT), cellulose acetate propionate (CAP), or a combination thereof. Alternatively, the substrate SUB may include a metal material.

The substrate (SUB) may be a rigid substrate or a flexible substrate capable of bending, folding, rolling, etc. When the substrate (SUB) is a flexible substrate, it may be formed of polyimide (PI), but is not limited thereto.

The thin film transistor layer (TFTL) may be disposed on the substrate (SUB). In the thin film transistor layer (TFTL), not only thin film transistors of each pixel, but also scan lines, data lines, power lines, scan control lines, and routing lines connecting pads and data lines will be disposed. You can. Each of the thin film transistors may include a gate electrode, a semiconductor layer, a source electrode, and a drain electrode. When the scan driver SD is formed in the non-display area NDA of the display panel 100 as shown in FIG. 3, the scan driver SD may include thin film transistors.

The thin film transistor layer (TFTL) may be disposed in the display area (DA) and the non-display area (NDA). Specifically, thin film transistors, scan lines, data lines, and power lines of each pixel of the thin film transistor layer TFTL may be disposed in the display area DA. Scan control lines and link lines of the thin film transistor layer (TFTL) may be disposed in the non-display area (NDA). A detailed description of the thin film transistor layer (TFTL) is described later.

A light emitting device layer (EML) may be disposed on the thin film transistor layer (TFTL). The light emitting layer (EML) may include pixels including a first electrode, an emitting layer, and a second electrode, and a pixel defining layer defining the pixels. The light-emitting layer may be an organic light-emitting layer containing an organic material. In this case, the light emitting layer may include a hole transporting layer, an organic light emitting layer, and an electron transporting layer. When a predetermined voltage is applied to the first electrode through the thin film transistor of the thin film transistor layer (TFTL) and the cathode voltage is applied to the second electrode, holes and electrons are moved to the organic light-emitting layer through the hole transport layer and electron transport layer, respectively. They combine with each other in the light-emitting layer and emit light. Pixels of the light emitting device layer (EML) may be arranged in the display area (DA). A detailed description of the light emitting element layer (EML) will be described later.

A thin film encapsulation layer (TFEL) may be disposed on the light emitting device layer (EML). The thin film encapsulation layer (TFEL) serves to prevent oxygen or moisture from penetrating into the light emitting element layer (EML). To this end, the thin film encapsulation layer (TFEL) may include at least one inorganic film.

The inorganic layer may be a silicon nitride layer, a silicon oxy nitride layer, a silicon oxide layer, a titanium oxide layer, or an aluminum oxide layer, but is not limited thereto.

Additionally, the thin film encapsulation layer (TFEL) serves to protect the light emitting element layer (EML) from foreign substances such as dust. To this end, the thin film encapsulation layer (TFEL) may include at least one organic layer. The organic layer may be acryl resin, epoxy resin, phenolic resin, polyamide resin, or polyimide resin, but is not limited thereto.

The thin film encapsulation layer (TFEL) may be disposed in both the display area (DA) and the non-display area (NDA). Specifically, the thin film encapsulation layer (TFEL) covers the light emitting element layer (EML) in the display area (DA) and the non-display area (NDA), and is arranged to cover the thin film transistor layer (TFTL) in the non-display area (NDA). It can be. A detailed description of the thin film encapsulation layer (TFEL) is provided later.

A sensing layer (TSL) may be disposed on the thin film encapsulation layer (TFEL). By placing the sensing layer (TSL) directly on the thin film encapsulation layer (TFEL), the thickness of the display device 10 is reduced compared to the case where a separate touch panel including the sensing layer (TSL) is attached on the thin film encapsulation layer (TFEL). There is an advantage in reducing .

The sensing layer (TSL) may include touch electrodes for detecting a user's touch using a mutual capacitance method, and connection wires connecting the pads and the touch electrodes. The sensing electrodes of the sensing layer (TSL) may be disposed in the sensing area (TSA) overlapping the display area (DA) as shown in FIG. 4 . The connection wires of the sensing layer (TSL) may be arranged to partially overlap the sensing area (TSA) as shown in FIG. 4 . Accordingly, the non-display area (NDA) of the display device 10 can be minimized, and thus the bezel area of the display device 10 can be reduced. A detailed description of this will be provided later.

A polarizing film may be disposed on the sensing layer (TSL). The polarizing film may include a linear polarizing plate and a phase retardation film such as a λ/4 plate (quarter-wave plate). In this case, the phase retardation film may be disposed on the sensing layer (TSL), and the linear polarizer may be disposed on the phase retardation film. Additionally, a cover window may be disposed on the polarizing film. The cover window may be attached to the polarizing film by a transparent adhesive member such as an optically clear adhesive (OCA) film.

FIG. 3 is a plan view showing configurations related to the display unit of FIG. 2.

In FIG. 3 , for convenience of explanation, pixels (P), scan lines (SL), data lines (DL), scan control lines (SCL), and fan out lines (DLL) of the display unit (DU) are shown. Only the scan driver (SD), display driver circuit 200, display pads (DDP), and sensing pads TP1 and TP2 are shown.

Referring to FIG. 3, scan lines SL, data lines DL, and pixels P are arranged in the display area DA. The scan lines SL are formed side by side in a first direction (X-axis direction), and the data lines DL are formed side by side in a second direction (Y-axis direction) that intersects the first direction (X-axis direction). You can.

Each of the pixels P may be connected to at least one of the scan lines SL and one of the data lines DL. Each of the pixels P may include thin film transistors including a driving transistor and at least one switching transistor, a light emitting element, and a capacitor.

Each of the pixels P receives a data voltage from the data line DL when a scan signal is applied from the scan line SL, and emits light by supplying a driving current to the light emitting device according to the data voltage applied to the gate electrode. You can. The light-emitting device has been described as being an organic light-emitting device including an anode electrode, an organic light-emitting layer, and a cathode electrode, but is not limited thereto.

For example, the light emitting device may be a quantum dot light emitting device including an anode electrode, a quantum dot light emitting layer, and a cathode electrode, an inorganic light emitting device including an anode electrode, an inorganic light emitting layer having an inorganic semiconductor, and a cathode electrode, or an ultra-small light emitting diode. It can be implemented as an ultra-small light emitting device.

The scan driver SD is connected to the display driver circuit 200 through a plurality of scan control lines SCL. The scan driver SD may receive a scan control signal from the display driver circuit 200. The scan driver SD generates scan signals according to the scan control signal and supplies them to the scan lines SL.

Although FIG. 3 illustrates that the scan driver SD is formed in the non-display area NDA outside the left side of the display area DA, the present invention is not limited thereto. For example, the scan driver SD may be disposed in the non-display area NDA outside the left and right sides of the display area DA.

The display driving circuit 200 is connected to display pads (DDP) and receives digital video data and timing signals. The display driving circuit 200 converts digital video data into analog positive/negative data voltages and supplies them to the data lines DL through the fan out lines DLL. Additionally, the display driving circuit 200 generates and supplies a scan control signal for controlling the scan driver SD through a plurality of scan control lines SCL.

Pixels P to which data voltages are to be supplied are selected by scan signals from the scan driver SD, and data voltages are supplied to the selected pixels P. The display driving circuit 200 may be formed as an integrated circuit (IC) and mounted on a substrate (SUB) using a chip on glass (COG) method, a chip on plastic (COP) method, or an ultrasonic bonding method, but is not limited thereto. No. For example, the display driving circuit 200 may be mounted on the circuit board 300.

The display panel 100 may include display pads DDP electrically connected to the display driving circuit 200 and sensing pads TP1 and TP2 electrically connected to sensing lines. The display pad area (DPA) where the display pads (DDP) are disposed includes a first sensing pad area (TPA1) where the first sensing pads (TP1) are disposed and a second sensing pad area (TPA1) where the second sensing pads (TP2) are disposed. It can be placed between TPA2). That is, the display pad area DPA is located in the center of one end of the protruding area, the first sensing pad area TPA1 is located on the left side of one end of the protruding area, and the second sensing pad area TPA2 is located in the protruding area. It may be placed on the right side of one end of the area (PA).

The circuit board 300 may be attached to the display pads (DDP) and the sensing pads (TP1 and TP2) using an anisotropic conductive film. Because of this, the lead lines of the circuit board 300 may be electrically connected to the display pads DDP and the sensing pads TP1 and TP2.

The circuit board 300 may be a flexible printed circuit board, a printed circuit board, or a flexible film such as a chip on film.

The touch driving circuit 400 may be connected to sensing electrodes of the sensing unit of the display panel 100. The touch driving circuit 400 applies driving signals to the sensing electrodes and measures mutual capacitance (hereinafter referred to as “mutual capacitance”) of the sensing electrodes. The driving signal may be a signal having a plurality of driving pulses. The touch driving circuit 400 may calculate touch coordinates where a touch is input according to mutual capacitance.

The touch driving circuit 400 may be disposed on the circuit board 300 . The touch driving circuit 400 may be formed as an integrated circuit (IC) and mounted on the circuit board 300.

FIG. 4 is a plan view showing components related to the sensing unit of FIG. 2.

In FIG. 4 , for convenience of explanation, only the touch electrodes (RE, TE), dummy electrode (DE), contact electrode (CE), connection wires (RL, TL), and touch pads (TP1, TP2) are shown.

Referring to FIG. 4, the sensing unit (TDU) includes a sensing area (TSA) for detecting a user's touch and a sensing peripheral area (TPA) disposed around the sensing area (TSA). The sensing area (TSA) may overlap the display area (DA) of the display unit (DU) described above with FIG. 3, and the sensing peripheral area (TPA) may overlap the non-display area (NDA) of the display unit (DU). there is.

The touch electrodes RE and TE may be disposed in the sensing area TSA. The touch electrodes RE and TE may include first touch electrodes RE and second touch electrodes TE. In FIG. 4 , the first touch electrode (RE) is a sensing electrode and may be the second touch electrode (TE). However, it is not limited to this. Hereinafter, the description will focus on that the first touch electrode (RE) is a sensing electrode and the second touch electrode (TE) is a driving electrode.

The first touch electrodes RE are arranged in a plurality of rows in a first direction (X-axis direction) and may be electrically connected. The second touch electrodes TE are arranged in a plurality of columns in a second direction (Y-axis direction) crossing the first direction (X-axis direction) and may be electrically connected. In FIG. 4 , each of the first touch electrodes (RE) and the second touch electrodes (TE) is illustrated as having a diamond-shaped planar shape, but each of the first and second touch electrodes (RE) (RE) and the second touch electrodes (TE) The planar shape of is not limited to this.

The first touch electrodes RE and the second touch electrodes TE are electrically separated from each other and may be arranged to be spaced apart from each other. That is, the first touch electrodes RE and the second touch electrodes TE may be disposed on the same layer and insulated from each other. The size of each of the first touch electrodes RE and the size of each of the second touch electrodes TE may be substantially the same. However, it is not limited to this.

The dummy electrodes DE are disposed on the same layer as the first and second touch electrodes RE and TE, and may be electrically separated from each other. That is, the dummy electrodes DE are disposed to be spaced apart from the first touch electrodes RE and the second touch electrodes TE, and each of the dummy electrodes DE is connected to the first touch electrodes RE and the second touch electrodes TE. It can be electrically floated with touch electrodes (TE).

The dummy electrodes DE may be arranged to be surrounded by each of the first touch electrodes RE and the second touch electrodes TE. Due to the dummy electrodes DE, the parasitic capacitance between the second electrode of the light emitting device layer ('EML' in FIG. 2) and the first touch electrode RE or the second touch electrode TE may be reduced. When the parasitic capacitance is reduced, the charging speed at which the mutual capacitance between the first touch electrode (RE) and the second touch electrode (TE) is charged can be increased.

The plurality of contact electrodes CE are disposed on different layers from one of the first touch electrodes RE disposed in each row, and may be electrically connected to each other. That is, each of the contact electrodes CE may be electrically connected to each of the first touch electrodes RE disposed in the nth column of the nth row. For example, as shown in FIG. 4, the first contact electrode CE1 is the first touch electrode RE disposed in the first column of the first row, and the second contact electrode CE2 is disposed in the first column of the first row. The first touch electrode RE is disposed in the second column, the third contact electrode CE3 is the first touch electrode RE disposed in the third column of the third row, and the fourth contact electrode CE4 is the third contact electrode CE4 in the fourth row. Each may be electrically connected to the first touch electrodes RE arranged in four rows.

The planar shape of the plurality of contact electrodes CE may be the same as that of the first touch electrodes RE and the second touch electrode TE. For example, each of the plurality of contact electrodes CE may have a diamond shape in plan view. However, the present invention is not limited thereto, and the planar shape of the contact electrodes CE may be different from the planar shape of each of the first touch electrodes RE and the second touch electrodes TE.

For example, the planar shape of the contact electrodes CE may have a polygonal shape other than a rhombus or a planar shape including a curve. Additionally, in FIG. 4 , the planar shapes of the plurality of contact electrodes CE are shown to be the same, but the present invention is not limited thereto, and in some embodiments, the planar shapes of the plurality of contact electrodes CE may be different.

The plurality of contact electrodes CE may have different areas on a plane. That is, the planar area of each of the contact electrodes CE extends in the second direction (Y-axis direction) from the first and second touch pads TP1 and TP2 disposed in the sensing peripheral area TPA. The farther away you are, the bigger it can become.

For example, the first contact electrode CE1 electrically connected to and disposed in the first column of the first row has the largest planar area, and is disposed in the fourth column of the fourth row. The planar area of the fourth touch electrode CE4 may be the smallest. That is, the planar area of the first contact electrode (CE1) is larger than the planar area of the second contact electrode (CE2), and the planar area of the second contact electrode (CE2) is larger than the planar area of the third contact electrode (CE3). area, and the planar area of the third contact electrode (CE3) may be larger than the planar area of the fourth contact electrode (CE4).

The connection wires RL and TL may include sensing connection wires RL connected to the contact electrodes CE and driving connection wires TL connected to the second touch electrodes TE.

The sensing connection wires (RL) are disposed on the same layer as the contact electrodes (CE), one end of the sensing connection wires (RL) is electrically connected to the contact electrode (CE), and the other end of the sensing connection wires (RL) is electrically connected to the contact electrode (CE). 1 Can be connected to touch pads (TP1). The sensing connection wires RL extend from the sensing peripheral area TPA where the first touch pads TP1 are arranged and may be arranged in the sensing area TSA. That is, the sensing connection wire RL extends from the sensing area TSA in the second direction (Y-axis direction) and may be electrically connected to the contact electrode CE in the sensing area TSA.

As the contact electrodes (CE) are arranged in different rows and columns in the sensing area (TSA), they are connected to each of the contact electrodes (CE), and the lengths of the sensing connection wires (RL) arranged in the sensing area (TSA) may be different. You can. That is, the sensing connection wire (RL) connected to the first touch pads (TP1) disposed in the sensing peripheral area (TPA) and the contact electrode (CE) disposed relatively further apart in the second direction (Y-axis direction). ) is the length of the sensing connection wire connected to the first touch pads TP1 disposed in the sensing peripheral area TPA and the contact electrode CE disposed relatively adjacent to the second direction (Y-axis direction). It can be longer than the length of (RL). In other words, the length of the second direction (Y-axis direction) of the sensing wires (RL) connected to each of the contact electrodes (CE) and disposed in the sensing area (TSA) is inversely proportional to the planar area of the contact electrodes (CE) can do.

For example, the length of the first sensing connection wire (RL1) connected to the first contact electrode (CE1) and disposed in the sensing area (TSA) is connected to the fourth contact electrode (CE4) and is disposed in the sensing area (TSA). It may be longer than the length of the fourth sensing connection wire RL4 disposed in . That is, the length of the first sensing connection wire RL1 disposed in the sensing area TSA in the second direction (Y-axis direction) is the second direction of the second sensing connection wire RL2 disposed in the sensing area TSA. It is longer than the length in the second direction (Y-axis direction) of the second sensing connection wire RL2 disposed in the sensing area TSA, and the length in the second direction (Y-axis direction) is longer than the length of the third sensing connection disposed in the sensing area TSA. It is longer than the length of the second direction (Y-axis direction) of the wire RL3, and the length of the third sensing connection wire RL3 disposed in the sensing area TSA in the second direction (Y-axis direction) is longer than the length of the third sensing connection wire RL3 disposed in the sensing area TSA. ) may be longer than the length of the fourth sensing connection wire RL4 disposed in the second direction (Y-axis direction).

The driving connection wires (TL) are disposed on the same layer as the second touch electrodes (TE), one end of the driving connection wires (TL) is electrically connected to the second touch electrodes (TE), and one end of the driving connection wire (TL) is electrically connected to the second touch electrodes (TE). ) may be connected to the second touch pads TP2.

The driving connection wires TL may extend from the sensing peripheral area TPA, where the second touch pads TP2 are arranged, to the edge of the sensing area TSA. The driving connection wires TL may be electrically connected to the second touch electrode TE at the edge of the sensing area TSA.

The driving connection wires TL may be electrically connected to one of the second touch electrodes TE disposed in each column. For example, as shown in FIG. 4, the driving connection wires TL are electrically connected to the second touch electrodes TE disposed at the lower end of the sensing area TSA. Can be electrically connected.

In the sensing peripheral area (TPA), the sensing connection wires (RL) and the driving connection wires (TL) intersect each other and may overlap in the thickness direction. That is, since the sensing connection wires RL and the driving connection wires TL are disposed in different layers, they may be insulated from each other and overlap in the thickness direction.

Figure 5 is an enlarged view of area A of Figure 4.

Referring to FIG. 5, in order to be insulated from the intersection area where the first touch electrodes RE and the second touch electrodes TE intersect, the first touch electrodes RE adjacent to each other in the first direction (X-axis direction) may be connected through the first connection part BE1, and second touch electrodes TE adjacent to each other in the second direction (Y-axis direction) may be connected through the second connection part BE2. Accordingly, the first touch electrodes RE and the second touch electrodes TE are electrically separated in the area where they intersect, and the first touch electrodes RE are electrically connected in the first direction (X-axis direction). , The second touch electrodes TE may be electrically connected in the second direction (Y-axis direction).

The first connection portion BE1 has a shape extending from the first touch electrodes RE and may be disposed on the same layer as the first touch electrodes RE.

The second connection portion BE2 may be connected to the second touch electrodes TE through a contact hole. The second connection parts BE2 may have a shape that is bent at least once. In FIG. 5 , the second connection parts BE2 are illustrated as being bent like “<” or “>”, but the shape of the second connection parts BE2 is not limited thereto.

In addition, since the second touch electrodes TE adjacent to each other in the second direction (Y-axis direction) are connected by a plurality of second connectors BE2, even if one of the second connectors BE2 is disconnected, the second touch electrodes TE are connected to each other in the second direction (Y-axis direction). The second touch electrodes TE adjacent to each other in two directions (Y-axis direction) can be stably connected. Although FIG. 5 illustrates that adjacent second touch electrodes TE are connected by two second connection parts BE2, the number of second connection parts BE2 is not limited thereto.

The dummy electrodes DE may be arranged to be surrounded by each of the first touch electrodes RE and the second touch electrodes TE. An opening OP may be located between the dummy electrodes DE and the first and second touch electrodes RE and TE. That is, each of the dummy electrodes DE may be surrounded by the opening OP, and the first touch electrodes RE and the second touch electrodes TE may be arranged to surround the opening OP.

The size of each of the dummy electrodes (DE) may be smaller than the size of each of the first and second touch electrodes (RE) and TE. In FIG. 5 , each of the first touch electrodes (RE), the second touch electrodes (TE), and the dummy electrodes (DE) is illustrated as having a diamond-shaped planar shape. However, the first touch electrodes (RE), the 2 The planar shape of each of the touch electrodes (TE) and the dummy electrodes (DE) is not limited thereto.

Each of the first contact electrode CE1 and the second contact electrode CE2 may be located on a different layer from the first touch electrodes RE, the second touch electrodes TE, and the dummy electrode DE. . For example, it is disposed on a different layer from the first touch electrode RE located in the first row and first column and the first touch electrode RE located in the second row and second column, and the first contact electrode CE1 and Each of the second contact electrodes CE2 may overlap each of the first touch electrodes RE in the thickness direction.

In addition, the first contact electrode CE1 and the second contact electrode CE2 each include openings OP located in the first touch electrode RE and dummy electrodes DE surrounded by the openings OP. They can overlap in the thickness direction.

Figure 6 is an enlarged view of area B of Figure 5.

Referring to FIG. 6 , the first touch electrodes RE, second touch electrodes TE, first connection part BE1, and second connection part BE2 may have a mesh shape or a mesh shape. The dummy electrodes DE may also have a mesh shape or a mesh shape.

As shown in FIG. 2, when the sensing layer (TSL) including the first touch electrodes (RE) and the second touch electrodes (TE) is disposed directly on the thin film encapsulation film (TFEL), the light emitting device layer ( Since the distance between the second electrode of the EML and each of the first and second touch electrodes RE and TE of the sensing layer TSL is close, the second electrode of the light emitting layer EML A large parasitic capacitance may be formed between each of the first and second touch electrodes (RE) and TE of the sensing layer (TSL). Since the parasitic capacitance is proportional to the overlap area between the second electrode of the light emitting element layer (EML) and each of the first and second touch electrodes (RE) and second touch electrodes (TE) of the sensing layer (TSL), the parasitic capacitance In order to reduce capacity, each of the first touch electrodes (RE) and second touch electrodes (TE) preferably has a mesh shape or a mesh shape.

In FIG. 6 , for convenience of explanation, the boundary between the first touch electrode (RE) and the second touch electrode (TE), the boundary between the second touch electrode (TE) and the first connection portion (BE1), and the first touch electrode are shown. The boundary between (RE) and the first connection portion (BE1) is shown as a dotted line.

The first connection portion BE1 may be disposed between first touch electrodes RE disposed adjacent to each other in the first direction (X-axis direction). The first connection portion BE1 may extend from each of the first touch electrodes RE. Therefore, the first connection part BE1 can be connected to the first touch electrodes RE without a separate contact hole.

The second connection part BE2 may be connected to the second touch electrodes TE through the first contact holes CNT1 and the second contact holes CNT2, respectively. One end of the second connection portion BE2 is connected to one of the second touch electrodes TE adjacent to each other in the second direction (Y-axis direction) through the first contact hole CNT1. It can be. The other end of the second connection portion BE2 is connected to another second touch electrode TE among the second touch electrodes TE adjacent to each other in the second direction (Y-axis direction) through the second contact hole CNT2. You can.

The second connection part BE2 may overlap the first touch electrodes RE and/or the second touch electrodes TE. Alternatively, the second connection part BE2 may overlap the first connection part BE1 instead of the first touch electrodes RE.

Alternatively, the second connection part BE2 may overlap both the first touch electrode RE and the first connection part BE1. The second connection part BE2 may be disposed on a different layer from the first connection part BE1. Accordingly, even if the second connection part BE2 overlaps the first connection part BE1, it may not be short-circuited to the first connection part BE1.

The first touch electrodes RE, the second touch electrodes TE, the first connection part BE1, and the second connection part BE2 may be arranged to non-overlap with each sub-pixel (R, G, B). there is. That is, the first touch electrodes (RE), the second touch electrodes (TE), the first connection portion (BE1), and the second connection portion (BE2) are located along the edges of each sub-pixel (R, G, B). can be placed. That is, the first touch electrodes RE, the second touch electrodes TE, the first connection part BE1, and the second connection part BE2 define pixels that define each sub-pixel (R, G, B). It may be arranged to overlap the membrane.

The sub-pixels (R, G, B) include a first sub-pixel (R) emitting a first color, a second sub-pixel (G) emitting a second color, and a third sub-pixel (G) emitting a third color ( B) may be included. In FIG. 6 , the first sub-pixel (R) is a red sub-pixel, the second sub-pixel (G) is a green sub-pixel, and the third sub-pixel (B) is a blue sub-pixel, but the present invention is not limited thereto.

In FIG. 6, it is illustrated that the first sub-pixel (R), the second sub-pixel (G), and the third sub-pixel (B) have a hexagonal planar shape, but the present invention is not limited thereto. The first sub-pixel (R), the second sub-pixel (G), and the third sub-pixel (B) may have a planar shape other than a hexagon, such as a polygon, a circle, or an oval.

In addition, in FIG. 6, the size of the first sub-pixel (R), the size of the second sub-pixel (G), and the size of the third sub-pixel (B) are substantially the same, but the sub-pixels (R, G, B) Their size is not limited to this. For example, the third sub-pixel (B) may be the largest in size, and the size of the second sub-pixel (G) may be the smallest. Alternatively, the size of the first sub-pixel (R) and the size of the third sub-pixel (B) are substantially the same, and the size of the second sub-pixel (G) is substantially the same as the size of the first sub-pixel (R) and the size of the third sub-pixel (B). It may be smaller than the size of each pixel (B).

6 illustrates that a pixel includes one first sub-pixel (R), two second sub-pixels (G), and one third sub-pixel (B), but the present invention is not limited thereto. For example, a pixel may include one first sub-pixel (R), one second sub-pixel (G), and one third sub-pixel (B).

According to the embodiment shown in FIG. 6, the first touch electrodes RE, the second touch electrodes TE, the first connection part BE1, and the second connection part BE2 have a mesh shape or a mesh shape. , the sub-pixels (R, G, B) may not overlap with the first touch electrodes (RE), the second touch electrodes (TE), the first connection portion (BE1), and the second connection portion (BE2). .

Accordingly, the light output from the sub-pixels (R, G, B) is transmitted to the first touch electrodes (RE), the second touch electrodes (TE), the first connection portion (BE1), and the second connection portion (BE2). By being obscured by , the luminance of light can be prevented from being reduced.

Figure 7 is an enlarged view of area C of Figure 6. Figure 8 is an enlarged view of area D of Figure 6.

7 and 8, the first contact electrode (CE1) and the second contact electrode (CE2) are each disposed on a different layer from the first touch electrode (RE), and the first contact electrode (CE1) and the second contact electrode (CE1) Each of the contact electrodes CE2 may overlap the first touch electrode RE and the dummy electrode DE in the thickness direction.

Since the planar area of the first contact electrode (CE1) connected to the first sensing connection wire (RL1) is larger than the planar area of the second contact electrode (CE2) connected to the second sensing connection wire (RL2), It is electrically connected to the first touch electrode (RE) located in the first row and first column, and the area of the first contact electrode (CE1) overlapping in the thickness direction is equal to the thickness of the first touch electrode (RE) located in the second row and second column. It may be larger than the area of the second contact electrode CE2 overlapping in the direction. Accordingly, the electrical resistance of the first touch electrode RE connected to the first contact electrode CE1 may be lower than the electrical resistance of the first touch electrode RE connected to the second contact electrode CE2.

In addition, the planar area of the first contact electrode CE1 and the second contact electrode CE2 is smaller than the planar area of the first touch electrode RE, and the planar area of the opening OP and the dummy electrode DE is smaller than the planar area of the first touch electrode RE. It may be larger than the image area.

7 and 8 show that the centers of the first contact electrode (CE1) and the second contact electrode (CE2) are aligned with the centers of the first touch electrode (RE) and the dummy electrode (DE). Not limited. For example, the centers of the first and second contact electrodes CE1 and CE2 may be disposed so that the centers of the first touch electrode RE and the dummy electrode DE do not coincide.

Referring to FIG. 7 , the first contact electrode CE1 may be connected to the first touch electrode RE through the third contact holes CNT3 and fourth contact holes CNT4. That is, one end of the first contact electrode (CE1) is connected to the first touch electrode (RE) adjacent in the thickness direction through the third contact holes (CNT3), and the other end of the first contact electrode (CE1) is connected to the fourth touch electrode (RE). It can be connected to the first touch electrode RE adjacent in the thickness direction through the contact holes CNT4.

FIG. 7 illustrates a case in which the third contact holes CNT3 and the fourth contact holes CNT4 are partially located on one side and the other side of the first contact electrode CE1, but the present invention is not limited thereto. For example, the third contact holes CNT3 and the fourth contact holes CNT4 may be disposed throughout the area where the first contact electrode CE1 and the first touch electrode RE overlap.

Referring to FIG. 8, similar to the first contact electrode CE1 described above in FIG. 7, the second contact electrode CE2 provides a second touch signal through the fifth contact holes CNT5 and the sixth contact holes CNT6. It may be connected to the electrode RE. That is, one end of the second contact electrode CE2 is connected to the first touch electrode RE adjacent in the thickness direction through the fifth contact holes CNT5, and the other end of the second contact electrode CE2 is connected to the sixth contact electrode RE. It can be connected to the first touch electrode RE adjacent in the thickness direction through the contact holes CNT6.

FIG. 8 illustrates a case where the fifth contact holes CNT5 and the sixth contact holes CNT6 are partially disposed on one side and the other side of the second contact electrode CE2, but the present invention is not limited thereto. For example, the fifth contact holes CNT5 and the sixth contact holes CNT6 may be disposed throughout the area where the second contact electrode CE2 and the first touch electrode RE overlap.

The first contact electrode (CE1) and the second contact electrode (CE2) each include the first touch electrode (RE), the second touch electrode (TE), the first connection portion (BE1), and the first touch electrode (RE) described above with reference to FIG. 6. 2 Like the connection part BE2, it may have a mesh shape or a mesh shape.

Since the first contact electrode (CE1) and the second contact electrode (CE2) have a mesh shape or a mesh shape, the sub-pixels (R, G, B) are connected to the first contact electrode (CE1) and the second contact electrode (CE2). may not overlap with . Accordingly, the light output from the sub-pixels (R, G, B) is blocked by the first contact electrode (CE1) and the second contact electrode (CE2), thereby preventing the luminance of the light from being reduced. Same as described above.

Figure 9 is an enlarged view of area E of Figure 6.

Referring to FIG. 9, the first sensing connection wire RL1 is connected to one end of the first contact electrode CE1, and the first sensing connection wire RL1 extends from one end of the first contact electrode CE1 in a second direction. It may have a shape extending in the (Y-axis direction).

The first sensing connection wire RL1 may partially overlap the first touch electrodes RE and/or the second touch electrodes TE. As shown in FIG. 9, the first sensing connection wire RL1 connected to one end of the first contact electrode CE1 disposed in the first row is connected to the first touch electrodes RE disposed in the first row and the first touch electrode RE disposed in the first row. It may overlap in the thickness direction with the first touch electrodes RE arranged in the second row. That is, the first sensing connection wire RL1 extends along the second direction (Y-axis direction) and is in the thickness direction with the first and second touch electrodes RE disposed in the first column. Can overlap. However, it is not limited thereto, and in some embodiments, the first sensing connection wire RL1 is connected to an end located on the side of the first contact electrode CE1 disposed in the first row and moves in the second direction (Y-axis direction). When extended, it extends in the second direction (Y-axis direction) and may overlap the first touch electrodes RE and the second touch electrodes TE in the thickness direction.

The first contact electrode CE1 may be disposed on the same layer as the first sensing connection wire RL1. The first contact electrode (CE1) and the first sensing connection wire (RL1) may be made of the same material. For example, the first contact electrode CE1 may be made of the first sensing conductive layer 171 shown in FIG. 10, which will be described later.

Like the first contact electrode CE1, the first sensing connection wire RL1 may have a mesh shape or a mesh shape. Since the first sensing connection line RL1 has a mesh shape or a net shape, the sub-pixels R, G, and B may not overlap with the first sensing connection line RL1. Accordingly, as described above, the light output from the sub-pixels (R, G, B) is blocked by the first sensing connection wire (RL1), thereby preventing the luminance of the light from being reduced.

Above, the description has been made based on the first sensing connection wire RL1, but the above description can be substantially equally applied to the second sensing connection wire RL2 connected to the second contact electrode CE2.

Figure 10 is a cross-sectional view taken along line II-II' of Figure 6. Figure 11 is a cross-sectional view taken along line III-III' of Figure 7. FIG. 12 is a cross-sectional view taken along line IV-IV' of FIG. 8. Figure 13 is a cross-sectional view taken along line V-V' of Figure 9.

In FIGS. 11 to 13 , the layers disposed below the thin film encapsulation layer (TFEL) are omitted for convenience of explanation, and the description of the omitted layers in conjunction with FIG. 10 can be applied substantially the same. there is.

Referring to FIG. 10, a thin film transistor layer (TFTL) is disposed on the substrate (SUB). The thin film transistor layer (TFTL) includes a buffer layer (BF), a semiconductor layer (ACT), a first insulating layer (IL1), a first conductive layer 110, a second insulating layer (IL2), a second conductive layer 120, and a third insulating layer (IL3). Each of the above-described layers may be made of a single layer, but may also be made of a stacked layer including a plurality of layers. Additionally, other layers may be further disposed between each layer.

A buffer layer (BF) may be disposed on one surface of the substrate (SUB). The buffer layer (BF) may be disposed on one side of the substrate (SUB) to protect the thin film transistors and the light emitting layer 152 of the light emitting element layer (EML), which will be described later, from moisture penetrating through the substrate (SUB), which is vulnerable to moisture permeation. there is.

The buffer layer BF may be composed of a plurality of inorganic films alternately stacked. For example, the buffer layer BF may be formed as a multilayer in which one or more inorganic layers of a silicon nitride layer, a silicon oxy nitride layer, a silicon oxide layer, a titanium oxide layer, and an aluminum oxide layer are alternately stacked. Additionally, the buffer layer (BF) may be omitted.

A semiconductor layer (ACT) may be disposed on the buffer layer (BF). The semiconductor layer (ACT) may form a channel for a plurality of transistors of pixels. The semiconductor layer (ACT) may include polycrystalline silicon. Polycrystalline silicon can be formed by crystallizing amorphous silicon.

When the semiconductor layer (ACT) is made of polycrystalline silicon, the semiconductor layer (ACT) may have conductivity through ion doping. Because of this, the semiconductor layer ACT may include a source region and a drain region as well as a channel region of a plurality of transistors. The source area and drain area may be connected to both sides of each channel area. However, the present invention is not limited thereto, and in some embodiments, the semiconductor layer ACT may include single crystalline silicon, low-temperature polycrystalline silicon, amorphous silicon, or an oxide semiconductor. Oxide semiconductors include, for example, binary compounds (ABx) and ternary compounds (ABxCy) containing indium, zinc, gallium, tin, titanium, aluminum, hafnium (Hf), zirconium (Zr), magnesium (Mg), etc. , may include a four-component compound (ABxCyDz). Additionally, the semiconductor layer (ACT) may include ITZO (oxide containing indium, tin, and titanium) or IGZO (oxide containing indium, gallium, and tin).

A first insulating layer IL1 may be disposed on the semiconductor layer ACT. The first insulating layer IL1 may be disposed substantially over the entire surface of the substrate SUB. The first insulating layer IL1 may be a gate insulating film having a gate insulating function. The first insulating layer IL1 may include a silicon compound, a metal oxide, or the like. For example, the first insulating layer IL1 may include silicon oxide, silicon nitride, silicon oxynitride, aluminum oxide, tantalum oxide, hafnium oxide, zirconium oxide, titanium oxide, etc. The first insulating layer IL1 may be a single layer or a multilayer layer made of a stack of different materials.

The first conductive layer 110 is disposed on the first insulating layer IL1. The first conductive layer 110 is made of molybdenum (Mo), aluminum (Al), platinum (Pt), palladium (Pd), silver (Ag), magnesium (Mg), gold (Au), nickel (Ni), and neodymium ( It may contain one or more metals selected from Nd), iridium (Ir), chromium (Cr), calcium (Ca), titanium (Ti), tantalum (Ta), tungsten (W), and copper (Cu). The first conductive layer 110 may be a single layer or a multilayer layer. The first conductive layer 110 may include a gate electrode of a transistor and a first electrode of a sustain capacitor.

A second insulating layer IL2 is disposed on the first conductive layer 110. The second insulating layer IL2 may be disposed substantially over the entire surface of the substrate SUB. The second insulating layer IL2 serves to insulate the first conductive layer 110 and the second conductive layer 120.

The second insulating layer IL2 may be an interlayer insulating film. The second insulating layer IL2 may include the same material as the above-described first insulating layer IL1, or may include one or more materials selected from the materials exemplified as constituent materials of the first insulating layer IL1.

The second conductive layer 120 is disposed on the second insulating layer IL2. The second conductive layer 120 is made of aluminum (Al), molybdenum (Mo), platinum (Pt), palladium (Pd), silver (Ag), magnesium (Mg), gold (Au), nickel (Ni), and neodymium ( It may contain one or more metals selected from Nd), iridium (Ir), chromium (Cr), calcium (Ca), titanium (Ti), tantalum (Ta), tungsten (W), and copper (Cu). The second conductive layer 120 may be a single layer or a multilayer layer. For example, the second conductive layer 120 may be formed in a stacked structure of Ti/Al/Ti, Mo/Al/Mo, Mo/AlGe/Mo, or Ti/Cu.

The second conductive layer 120 may include the above-described data lines, source electrode 121, and drain electrode 122. The source electrode 121 and the drain electrode 122 may be connected to the source region and drain region of the semiconductor layer ACT, respectively, through contact holes penetrating the second insulating layer IL2 and the first insulating layer IL1. there is.

The third insulating layer IL3 covers the second conductive layer 120. It may be disposed on the second conductive layer 120. In one embodiment, the third insulating layer IL3 may be a via layer. The third insulating layer (IL3) is made of acrylic resin, epoxy resin, phenolic resin, polyamides resin, polyimides rein, and unsaturated polyester. It may include organic insulating materials such as unsaturated polyesters resin, polyphenylenethers resin, polyphenylenesulfides resin, or benzocyclobutene (BCB).

A light emitting element layer (EML) is disposed on the thin film transistor layer (TFTL). The light emitting device layer (EML) may include a first electrode layer 151, an emission layer 152, a second electrode layer 153, and a pixel defining layer 140.

Each of the sub-pixels has a first electrode layer 151, a light-emitting layer 152, and a second electrode layer 153 sequentially stacked, so that holes from the first electrode layer 151 and electrons from the second electrode layer 153 are transmitted to the light-emitting layer. (152) indicates regions that are combined with each other and emit light. In FIG. 10, the first sub-pixel (R) is shown as a reference, but the second sub-pixel (G) (see FIG. 6) and the third sub-pixel (B) (see FIG. 6) are also shown in FIG. 10. It may include substantially the same configuration as the pixel R.

The first electrode layer 151 may be disposed on the third insulating layer IL3. The first electrode layer 151 is not limited to this, but is made of indium-tin-oxide (ITO), indium-zinc-oxide (IZO), and zinc oxide (ZnO). , a material layer with a high work function of indium oxide (In2O3) and silver (Ag), magnesium (Mg), aluminum (Al), platinum (Pt), lead (Pb), gold (Au), and nickel (Ni). ), neodymium (Nd), iridium (Ir), chromium (Cr), lithium (Li), calcium (Ca), or a mixture thereof may have a laminated film structure. A layer with a high work function may be placed above the reflective material layer and close to the light emitting layer 152. The first electrode layer 151 may have a multi-layer structure of ITO/Mg, ITO/MgF, ITO/Ag, or ITO/Ag/ITO, but is not limited thereto.

The anode electrodes of the sub-pixels may be made of the first electrode layer 151. Although FIG. 10 illustrates a case where the anode electrode is connected to the drain electrode 122 through a contact hole penetrating the third insulating layer IL3, the case is not limited thereto. That is, the anode electrode may be connected to the source electrode 121 through a contact hole penetrating the third insulating layer IL3.

A pixel defining layer 140 may be disposed on the first electrode layer 151. The pixel defining layer 140 may be disposed to partition the first electrode layer 151 to define sub-pixels. The pixel defining layer 140 may include an opening exposing the first electrode layer 151. That is, the pixel defining layer 180 may be formed to cover the edge of the first electrode layer 151. The opening may define the light emitting area of each sub-pixel.

The pixel defining layer 140 is made of an inorganic insulating material such as silicon oxide, silicon nitride, silicon oxynitride, hafnium oxide, aluminum oxide, titanium oxide, tantalum oxide, zinc oxide, or acrylic resin (polyacrylates resin) or epoxy resin. , phenolic resin, polyamides resin, polyimides rein, unsaturated polyesters resin, polyphenylenethers resin, polyphenylene It may contain organic insulating materials such as sulfide resin (polyphenylenesulfides resin) or benzocyclobutene (BCB). The pixel defining layer 140 may be a single layer or a multilayer layer made of stacked layers of different materials.

A light emitting layer 152 may be disposed within the opening of the pixel defining layer 140. The light emitting layer 152 may contain an organic material and emit light of a predetermined color. For example, the light emitting layer 152 may include a hole transporting layer, an organic material layer, and an electron transporting layer. In this case, the light-emitting layer 152 of the red sub-pixel (R) emits red light, the light-emitting layer 152 of the green sub-pixel (G) (see FIG. 6) emits green light, and the light-emitting layer 152 of the blue sub-pixel (B) emits green light. The light emitting layer 152 (see FIG. 6) may emit blue light.

A second electrode layer 153 may be disposed on the light emitting layer 152 and the pixel defining layer 140. The cathode electrode may be made of a second electrode layer 153. The cathode electrode may be disposed throughout the display area DA. The second electrode layer 153 is Li, Ca, LiF/Ca, LiF/Al, Al, Mg, Ag, Pt, Pd, Ni, Au Nd, Ir, Cr, BaF, Ba, or a compound or mixture thereof (e.g. It may include a material layer with a small work function, such as a mixture of Ag and Mg, etc. The second electrode layer 153 may further include a transparent metal oxide layer disposed on the material layer with a low work function. A capping layer may be formed on the second electrode layer 153.

A thin film encapsulation layer (TFEL) may be disposed on the light emitting device layer (EML). The thin film encapsulation layer (TFEL) is disposed on the second electrode layer 153. The thin film encapsulation layer (TFEL) may include at least one inorganic film to prevent oxygen or moisture from penetrating into the light emitting layer 152 and the second electrode layer 153.

Additionally, the thin film encapsulation layer (TFEL) may include at least one organic layer to protect the light emitting device layer (EML) from foreign substances such as dust. For example, the thin film encapsulation layer TFEL may include a first inorganic layer disposed on the second electrode layer 153, an organic layer disposed on the first inorganic layer, and a second inorganic layer disposed on the organic layer. there is.

The first inorganic layer and the second inorganic layer may be made of a silicon nitride layer, a silicon oxy nitride layer, a silicon oxide layer, a titanium oxide layer, or an aluminum oxide layer, but are not limited thereto.

The organic layer may be made of acryl resin, epoxy resin, phenolic resin, polyamide resin, polyimide resin, etc., but is not limited thereto.

Referring to FIGS. 10 to 13 , a sensing layer (TSL) may be disposed on the thin film encapsulation layer (TFEL). In some embodiments, a buffer film may be additionally disposed between the thin film encapsulation layer (TFEL) and the sensing layer (TSL).

The sensing layer (TSL) may include a first sensing conductive layer 171, a first sensing insulating layer (TIL1), a second sensing conductive layer 172, and a second sensing insulating layer (TIL2).

Each of the above-described layers may be made of a single layer, but may also be made of a stacked layer including a plurality of layers. Additionally, other layers may be further disposed between each layer.

The first sensing conductive layer 171 may include molybdenum, titanium, copper, aluminum, and alloys thereof. The first sensing conductive layer 171 may include the above-described first contact electrode (CE1), second contact electrode (CE2), first sensing connection wire (RL1), and second connection portion (BE2).

A first sensing insulating layer (TIL1) may be disposed on the first sensing conductive layer 171.

The first sensing insulating layer (TIL1) insulates the first sensing conductive layer 171 and the second sensing conductive layer 172. The first sensing insulating layer TIL1 may include an organic layer and/or an inorganic layer.

The organic film is, for example, acrylic resin, methacrylic resin, polyisoprene, vinyl resin, epoxy resin, urethane resin, cellulose resin, siloxane resin, polyimide resin, polyamide resin, and perylene resin. It can include at least one of them.

The inorganic film may include, for example, at least one of aluminum oxide, titanium oxide, silicon oxide, silicon oxynitride, zirconium oxide, and hafnium oxide.

The second sensing conductive layer 172 may be disposed on the first sensing insulating layer TIL1. The second sensing conductive layer 172 may include the same material as the above-described first sensing conductive layer 171, or may include one or more materials selected from the materials exemplified as constituent materials of the first sensing conductive layer 171. there is. The second sensing conductive layer 172 may include the above-described first touch electrode (RE), second touch electrode (TE), and dummy electrode (DE).

A second sensing insulating layer (TIL2) may be disposed on the second sensing conductive layer 172. The second sensing insulating layer TIL2 may serve to flatten the step formed by the first sensing conductive layer 171 and the second sensing conductive layer 172. The second sensing insulating layer (TIL2) may include the same material as the above-described first sensing insulating layer (TIL1), or may include one or more materials selected from the materials exemplified as constituent materials of the first sensing insulating layer (TIL1). there is.

Referring to FIG. 10 , the second touch electrode TE may be connected to the second connection portion BE2 through the first contact hole CNT1 penetrating the first sensing insulating layer TIL1. Accordingly, in FIG. 5 , second sensing electrodes TE adjacent to each other in the second direction (Y-axis direction) may be connected through the second connection portion BE2.

Referring to FIGS. 11 and 12 , the first touch electrodes RE and the dummy electrodes DE may be disposed on the same layer and spaced apart from each other. That is, the first touch electrodes RE and the dummy electrode RE are disposed on the first sensing insulating layer TIL1 and may be spaced apart from each other along the first direction (X-axis direction).

The first contact electrode (CE1) is connected to the first touch electrode (RE) through the third contact hole (CNT3) and fourth contact hole (CNT4) penetrating the first sensing insulating layer (TIL1), and the first sensing insulating layer (TIL1) is connected to the first touch electrode (RE). It may overlap the first touch electrode RE in the thickness direction, with the insulating layer TIL1 interposed therebetween.

Like the first contact electrode CE1, the second contact electrode CE2 is connected to the first touch electrode through the fifth contact hole CNT5 and the sixth contact hole CNT6 penetrating the first sensing insulating layer TIL1. It is connected to (RE) and may overlap the first touch electrode (RE) in the thickness direction with the first sensing insulating layer (TIL1) interposed therebetween.

Since the first contact electrode (CE1) and the second contact electrode (CE2) have a larger area than the dummy electrode (DE), the first contact electrode (CE1) and the second contact electrode (CE2) each have a first sensing insulating layer. It can overlap the entire surface of the dummy electrode DE in the thickness direction with (TIL1) in between.

11 and 12 , each of the first contact electrode CE1 and the second contact electrode CE2 is shown as overlapping the front surface of the dummy electrode DE in the thickness direction, but this is not limited thereto, and in some embodiments, the first contact electrode CE1 and the second contact electrode CE2 are shown to overlap the front surface of the dummy electrode DE. Each of the first contact electrode CE1 and the second contact electrode CE2 may overlap at least a portion of the dummy electrode DE with the first touch insulating layer TIL1 interposed therebetween.

As described above, in one embodiment, the area of the first contact electrode (CE1) is larger than the area of the second contact electrode (CE2), so the width of the first contact electrode (CE1) in the first direction (X-axis direction) (W1) may be larger than the width (W2) of the second contact electrode (CE2) in the first direction (X-axis direction). Accordingly, the area of the first contact electrode (CE1) overlapping in the thickness direction with the first touch electrode (RE) disposed on the first sensing insulating layer (TIL1) is the area of the first contact electrode (CE1) disposed on the first sensing insulating layer (TIL1) It may be larger than the area of the second contact electrode (CE2) overlapping the first touch electrode (RE) in the thickness direction.

Referring to FIG. 13 , as described above, the first sensing connection wire RL1 is disposed on the same layer as the first contact electrode CE1 and may be connected to an end of the first contact electrode CE1. That is, the first sensing connection wire RL1 is integrated with the first contact electrode CE1 and may be disposed on the thin film encapsulation layer TFEL.

In FIG. 13, the first contact electrode (CE1) and the first sensing connection wire (RL1) are shown as being formed as one body, but this is not limited to this, and in some embodiments, the first contact electrode (CE1) and the first sensing connection wire (RL1) are shown as one body. RL1) may be made of separate substances.

The first sensing connection wire RL1 extending from the end of the first contact electrode CE1 is connected to the first touch electrode RE and the second touch electrode TE with the first sensing insulating layer TIL1 interposed therebetween. They can overlap in the thickness direction. That is, the first sensing connection wire RL1 may overlap the first touch electrode RE and the second touch electrode TE disposed on a different layer from the first sensing connection wire RL1 in the thickness direction.

According to the embodiment shown in FIGS. 1 to 13, each of the sensing connection wires RL is connected to one end of the touch electrodes CE and disposed in the sensing area TSA, thereby detecting the sensing area TPA. The bezel area of the display device 10 can be minimized by reducing the space for arranging the connection wires RL.

In addition, the planar areas of the touch electrodes (CE), which have different lengths and are connected to one end of the sensing connection wires (RL) disposed in the sensing area (TSA), are different from each other, so that the difference in length of the sensing connection wires (RL) It is possible to reduce the difference in touch sensitivity between the first touch electrodes RE.

That is, each of the sensing connection wires RL disposed in the sensing area TSA has a different length, and accordingly, each of the sensing connection wires RL may have a different resistance. Therefore, the difference in resistance of the sensing connection wiring (RL) having different resistances is compensated for by the touch electrodes (CE) that contact the sensing connection wiring (RL) and the first touch electrode (RE) and have different areas. Or it can be offset. In this way, by compensating or offsetting the resistance difference, the difference in touch sensitivity occurring in the first touch electrodes RE connected to the contact electrodes CE is reduced, and the first touch electrode disposed in the sensing area TSA ( RE) touch sensitivity can be kept constant.

Hereinafter, other embodiments of the display device will be described. In the following embodiments, the same components as the previously described embodiments will be referred to by the same reference numerals, redundant descriptions will be omitted or simplified, and differences will be mainly explained.

FIG. 14 is an enlarged view of area C of FIG. 6 according to another embodiment. FIG. 15 is an enlarged view of area D of FIG. 6 according to another embodiment.

Referring to Figures 14 and 15, unlike the embodiment shown in Figures 7 and 8, the first contact electrode (CE1_1) and the second contact electrode (CE2_1) are connected to the first electrode opening (EOP1) and the second electrode, respectively. The difference is that it includes an opening (EOP2).

The first contact electrode CE1_1 includes a first electrode opening EOP1 and a first contact electrode portion EP1 surrounding the first electrode opening EOP1, and the second contact electrode CE2_1 includes a second electrode opening EOP1. It may include (EOP2) and a second contact electrode portion (EP2) surrounding the second electrode opening (EOP2).

Specifically, the first contact electrode portion EP1 of the first contact electrode CE1_1 and the second contact electrode portion EP2 of the second contact electrode CE2_1 are meshed, similar to the embodiments according to FIGS. 7 and 8. It has a shape or a mesh shape and may not overlap with the dummy electrodes DE_1 in the thickness direction.

The first contact electrode part EP1 of the first contact electrode CE1_1 and the second contact electrode part EP2 of the second contact electrode CE2_1 each have a first sensing connection wire RL1 and a second sensing connection wire ( It can be connected to one end of RL2).

The first contact electrode parts EP1 of the first contact electrode CE1_1 are connected to the first touch electrode RE_1 through the third contact holes CNT3_1 and the fourth contact holes CNT4_1, and the second contact electrode The second contact electrode parts EP2 of (CE2) may be connected to the first touch electrode RE_1 through the fifth contact holes CNT5_1 and the sixth contact holes CNT6_1.

The first electrode opening EOP1 of the first contact electrode CE1_1 is an area where the first contact electrode part EP1 is removed from the first contact electrode CE1_1, and the second electrode opening of the second contact electrode CE2_1 (EOP2) may be an area where the second contact electrode portion EP2 is removed from the second contact electrode CE2_1. That is, the first electrode opening (EOP1) of the first contact electrode (CE1_1) and the second electrode opening (EOP2) of the second contact electrode (CE2_1) are respectively connected to the first contact electrode (CE1) and the second contact electrode (CE2). It penetrates each of them in the thickness direction and can overlap with the dummy electrodes DE_1 in the thickness direction.

In this embodiment, each of the first electrode opening (EOP1) and the second electrode opening (EOP2) is illustrated as having a diamond-shaped planar shape. However, the planar shape of the first electrode opening (EOP1) and the second electrode opening (EOP2) is The shape is not limited to this.

The planar area of the first contact electrode CE1_1 including the first electrode opening EOP1 and the first contact electrode portion EP1 is the area including the second electrode opening EOP2 and the second contact electrode portion EP2. It may be larger than the planar area of the second contact electrode (CE2_1). That is, the planar area of the first electrode opening EOP1 and the second electrode opening EOP2 is the same, and accordingly, the total area of the first contact electrode part EP1 surrounding the first electrode opening EOP1 is It may be larger than the total area of the second contact electrode portion EP2 surrounding the second electrode opening EOP2.

In this embodiment, the planar areas of the first electrode opening (EOP1) and the second electrode opening (EOP2) are shown to be the same, but the planar area is not limited thereto. In some embodiments, the planar areas of the first electrode opening (EOP1) and the second electrode opening (EOP2) may be different. For example, the planar area of the first electrode opening EOP1 may be smaller than the planar area of the second electrode opening EOP2. Accordingly, the difference between the total area of the first touch electrode part EP1 and the total area of the second touch electrode part EP2 may increase.

In addition, the planar area of the first contact electrode (CE1_1) connected to the first sensing connection wire (RL1) is larger than the planar area of the second contact electrode (CE2_1) connected to the second sensing connection wire (RL2). Accordingly, the area of the first contact electrode (CE1_1) overlapping in the thickness direction with the first touch electrode (RE_1) is the area of the second contact electrode (CE2) overlapping in the thickness direction with the first touch electrode (RE_1) located in the second row and second column. ) can be larger than the area of .

Figure 16 is a cross-sectional view taken along line IV-IV' of Figure 14 according to another embodiment. FIG. 17 is a cross-sectional view taken along line V-V' of FIG. 15 according to another embodiment.

Referring further to FIGS. 16 and 17 along with FIGS. 14 and 15 , in this embodiment, unlike the embodiment shown in FIGS. 11 and 12, the first contact electrode portion EP1 of the first contact electrode CE1_1 are disposed to be spaced apart in the first direction (X-axis direction) with the first electrode opening EOP1 in between, and the second contact electrode part EP2 of the second contact electrode CE2_1 is the second electrode opening EOP2 ) is disposed to be spaced apart in the first direction (X-axis direction), and each of the first contact electrode portion EP1 and the second contact electrode portion EP2 is disposed in the thickness direction with the first touch electrodes RE_1. Can be nested.

The first contact electrode part EP1 is electrically connected to the first touch electrode RE_1 through the third contact hole CNT3_1 and the fourth contact hole CNT4_1 penetrating the first sensing insulating layer TIL1, The second contact electrode portion EP2 may be electrically connected to the first touch electrode RE_1 through the fifth contact hole CNT5_1 and the sixth contact hole CNT6_1 penetrating the first sensing insulating layer TIL1. .

As described above, the area of the first contact electrode part EP1 is larger than the area of the second contact electrode part EP2, so the width of the first contact electrode part EP1 in the first direction (X-axis direction) ( W3) is larger than the width W4 of the second contact electrode part EP2 in the first direction (X-axis direction), and accordingly, the first contact electrode part overlaps the first touch electrode RE_1 in the thickness direction. The area of EP1) may be larger than the area of the second contact electrode part EP2 that overlaps the first touch electrode RE_1 in the thickness direction.

Additionally, each of the first contact electrode portion EP1 and the second contact electrode portion EP2 may not overlap with the dummy electrode DE_1. That is, the first contact electrode part EP1 is arranged to be spaced apart from each other with the first electrode opening EOP1 in between, and the second contact electrode part EP2 is arranged to be spaced apart from the second electrode opening EOP2. Each may overlap the first touch electrode RE_1 in the thickness direction, and the first electrode opening EOP1 and the second electrode opening EOP2 may overlap the dummy electrode DE_1 in the thickness direction. 16 and 17 , each of the first electrode opening EOP1 and the second electrode opening EOP2 is shown to be equal to the planar area of the opening OP_1 surrounding the dummy electrode DE_1, but the present invention is not limited thereto.

In some embodiments, when the sizes of the first electrode opening EOP1 and the second electrode opening EOP2 are reduced, the area of the first contact electrode part EP1 and the area of the second contact electrode part EP2 are increased. Accordingly, it may overlap with the dummy electrode DE_1 in the thickness direction. That is, the area of the first contact electrode part EP1 and the area of the second contact electrode part EP2 are each aligned in the first direction (X-axis direction) where the first electrode opening EOP1 and the second electrode opening EOP2 are located. ), a portion of the first contact electrode portion EP1 and a portion of the second contact electrode portion EP2 may overlap the dummy electrode DE_1 in the thickness direction.

Even in the case of the embodiment shown in FIGS. 14 to 17, the wires have different lengths and are connected to one end of the sensing connection wires RL disposed in the sensing area TSA and surround the electrode openings of the touch electrodes CE_1. By varying the total area of the touch electrode portions, the difference in touch sensitivity of the first touch electrodes RE_1 due to the difference in length of the sensing connection wires RL can be reduced.

FIG. 18 is a plan view showing components related to the sensing unit of FIG. 2 according to another embodiment. Specifically, FIG. 18 is a plan view showing components included in the sensing unit (TDU_2) according to another embodiment.

Referring to FIG. 18, unlike the embodiment according to FIG. 4, the size of the planar area of the contact electrodes (CE_2) disposed in the sensing area (TSA) are all the same, and a plurality of contact electrodes (CE_2) connected to one end of the contact electrodes (CE_2) are the same. The difference is that the widths of the sensing connection wires (RL_2) are different.

Specifically, as shown in FIG. 18, the first contact electrode (CE1_2) is the first touch electrode (RE_2) disposed in the first column of the first row, and the second contact electrode (CE2_2) is the second touch electrode (RE_2) disposed in the first column of the second row. The first touch electrode RE_2 disposed in the column, the third contact electrode CE3_2 is the first touch electrode RE_2 disposed in the third column of the third row, and the fourth contact electrode CE4_2 is the fourth contact electrode disposed in the fourth row It is electrically connected to the first touch electrode RE_2 disposed in the row, and the planar shape and area of the contact electrodes CE_2 may be the same.

The sensing connection wires (RL_2) connected to the contact electrodes (CE_2) are disposed on the same layer as the contact electrodes (CE_2), one end of the sensing connection wires (RL_2) is electrically connected to the contact electrode (CE_2), and one end of the sensing connection wires (RL_2) is electrically connected to the contact electrode (CE_2). Other ends of the connection wires RL_2 may be connected to the first touch pads TP1 located in the first sensing pad area TPA1.

The width of some of the sensing connection wires RL_2 located in the sensing area TSA may be different from that of the sensing connection wire RL_2 located in the sensing peripheral area TPA. For example, the width of the first sensing connection wire RL1_2 located in the sensing area TSA may be larger than the width of the first sensing connection wire RL1_2 located in the sensing peripheral area TPA. However, the present invention is not limited to this, and the widths of each of the sensing connection wires RL_2 located in the sensing area TSA and the sensing peripheral area TPA may be the same.

The length of the sensing connection wire (RL_2) connected to the contact electrode (CE_2) disposed relatively further apart from the sensing pad areas (TPA1, TPA2) in the second direction (Y-axis direction) is equal to the length of the sensing pad area (TPA1, TPA2). It may be longer than the length of the sensing connection wire (RL_2) connected to the contact electrode (CE_2) disposed relatively adjacent to the TPA2) in the second direction (Y-axis direction).

The widths of the sensing connection wires RL_2 located in the sensing area TSA may be different. The width of the sensing connection wire RL_2 may include both the width in the first direction (X-axis direction) and the width in the third direction (Z-axis direction). For example, the width of the first sensing connection wire (RL1_2) connected to the first contact electrode (CE1_2) and disposed in the sensing area (TSA) is connected to the fourth contact electrode (CE4_2) and is disposed in the sensing area (TSA) It may be larger than the width of the fourth sensing connection wire RL4_2 disposed in . That is, the width of the first sensing connection wire RL1_2 disposed in the sensing area TSA is larger than the width of the second sensing connection wire RL2_2 disposed in the sensing area TSA, and the width of the second sensing connection wire RL2_2 disposed in the sensing area TSA is larger. The width of the second sensing connection wire (RL2_2) is larger than the width of the third sensing connection wire (RL3_2) disposed in the sensing area (TSA), and the width of the third sensing connection wire (RL3_2) disposed in the sensing area (TSA) may be larger than the width of the fourth sensing connection wire RL4_2 disposed in the sensing area TSA. In other words, the width of the sensing wires RL_2 connected to each of the contact electrodes CE_2 and disposed in the sensing area TSA may be proportional to the length of the sensing connection wires RL_2.

The driving connection wires (TL_2) are disposed on the same layer as the second touch electrode (TE_2), one end of the driving connection wires (TL_2) is electrically connected to the second touch electrode (TE_2), and one end of the driving connection wires (TL_2) is electrically connected to the second touch electrode (TE_2). The other end may be connected to second touch pads TP2.

The driving connection wires (TL_2) extend from the sensing peripheral area (TPA) where the second touch pads (TP2) are arranged to the edge of the sensing area (TSA), and the driving connection wires (TL_2) extend from the edge of the sensing area (TSA). It can be electrically connected to the second touch electrode (TE_2) in place. The width of each of the driving connection wires TL_2 may be the same, unlike that of the detection connection wire RL_2.

In the case of this embodiment, the length difference is caused by the sensing connection wires (RL_2) that are connected to each of the touch electrodes (CE_2) having the same area in the sensing area (TSA) and have a wider wire width as the length increases. The difference in resistance between the sensing connection wires RL_2 can be compensated or offset. Accordingly, the touch sensitivity of the first touch electrodes RE_2 disposed in the sensing area TSA can be kept constant.

FIG. 19 is a plan view showing components related to the sensing unit of FIG. 2 according to another embodiment. Specifically, FIG. 19 is a plan view showing components included in the sensing unit (TDU_3) according to another embodiment.

Referring to FIG. 19, unlike the embodiment according to FIG. 18, the width of each of the sensing connection wires RL_3 connected to the contact electrodes CE_3 is the same, and a plurality of protrusions protruding from the sensing connection wire RL_3 The difference is that it includes more DPs.

Specifically, as shown in FIG. 19, the first contact electrode (CE1_3) is the first touch electrode (RE_3) disposed in the first column of the first row, and the second contact electrode (CE2_3) is the second touch electrode (RE_3) disposed in the first column of the first row. The first touch electrode RE_3 disposed in the column, the third contact electrode CE3_3 is the first touch electrode RE_3 disposed in the third column of the third row, and the fourth contact electrode CE4_3 is the fourth contact electrode disposed in the fourth row It is electrically connected to the first touch electrode RE_3 disposed in a row, and the planar shape and area of the contact electrodes CE_3 may be the same.

The widths of the sensing connection wires RL_3 located in the sensing area TSA are the same, and each of the sensing connection wires RL_3 located in the sensing area TSA has a plurality of protruding wires RL_3. It may include protrusions (DP).

A plurality of protrusions DP protrude from the sensing connection wires RL_3 toward one side and the other side in the first direction (X-axis direction), and on a plane, the first touch electrodes RE_3 and the second touch electrodes ( It may have the same rhombus planar shape as TE_3). However, the planar shape of the protrusions DP is not limited to this, and the planar shape of each of the protrusions DP may be different from the planar shape of the first touch electrodes RE_3 and the second touch electrodes TE_3. there is. For example, the planar shape of each of the protrusions DP may have a circular or polygonal shape.

The plurality of protrusions DP protruding from the sensing connection wires RL_3 are arranged to be spaced apart along the second direction (Y-axis direction) and overlap the first touch electrodes RE_3 and the dummy electrodes DE_3. You can. For example, a plurality of plurality of wires protruding from the first sensing connection wire RL1_3 connected to one end of the first contact electrode CE1_3 disposed in the first row and first column and extending along the second direction (Y-axis direction). The first protrusions DP1 are arranged to be spaced apart along the second direction (Y-axis direction) and may overlap in the thickness direction with the first touch electrodes RE_3 and the dummy electrodes DE_3 arranged in the first column. there is.

The shape and planar area of the protrusions DP included in each of the sensing connection wires RL_3 disposed in the sensing area TSA are the same, and the number of protrusions DP included in each of the sensing connection wires RL_3 is the same. may be different. For example, the number of first protrusions DP1 included in the first sensing connection wire RL1_3 connected to the first contact electrode CE1_3 and disposed in the sensing area TSA is equal to that of the fourth contact electrode CE4_3. and may be greater than the number of fourth protrusions DP4 included in the fourth sensing connection wire RL4_3 disposed in the sensing area TSA.

That is, the number of first protrusions DP1 included in the first sensing connection wire RL1_3 disposed in the sensing area TSA is the number of the first protrusions DP1 included in the second sensing connection wire RL2_3 disposed in the sensing area TSA. 2 The number of second protrusions DP2 is greater than the number of protrusions DP2, and the number of second protrusions DP2 included in the second sensing connection wire RL2_3 disposed in the sensing area TSA is greater than the number of protrusions DP2 included in the second sensing connection wire RL2_3 disposed in the sensing area TSA. The number of third protrusions DP3 of the third sensing connection wire RL3_3 is greater than the number of third protrusions DP3 included in the wiring RL3_3 and is disposed in the sensing area TSA. The number and width of the fourth protrusions DP4 included in the fourth sensing connection wire RL4_4 may be greater than the width. In other words, the number of protrusions DP included in each of the sensing wires RL_3 connected to each of the contact electrodes CE_3 and disposed in the sensing area TSA is proportional to the length of the sensing connection wires RL_3. You can.

In the embodiment shown in FIG. 19, the planar shape and area of the protrusions DP included in the sensing connection wires RL_3 disposed in the sensing area TSA are the same, and each of the sensing connection wires RL_3 Although the number of protrusions DP included in is shown to be different, it is not limited thereto, and in some embodiments, the planar shape of the protrusions DP included in the sensing connection wires RL_3 disposed in the sensing area TSA are the same in number, and the areas of the protrusions DP included in each sensing connection wire RL_3 may vary. For example, the planar shape and number of the first protrusions DP1 included in the first sensing connection wire RL1_3 and the fourth protrusions DP4 included in the fourth sensing connection wire RL4_3 are the same, The planar area of each of the first protrusions DP1 may be larger than the planar area of each of the fourth protrusions DP4.

In the case of this embodiment, the sensing connection wire RL_3 is connected to each of the touch electrodes CE_3 having the same area in the sensing area TSA and includes protrusions DP having different numbers or different areas. It is possible to compensate or offset the difference in resistance of each of the sensing connection wires (RL_3) due to the difference in length. Accordingly, the touch sensitivity of the first touch electrodes RE_3 disposed in the sensing area TSA can be kept constant.

FIG. 20 is a plan view showing components related to the sensing unit of FIG. 2 according to another embodiment. Figure 21 is an enlarged view of area F of Figure 20 according to another embodiment. FIG. 22 is an enlarged view of area G of FIG. 20. Figure 23 is an enlarged view of area H of Figure 20. FIG. 24 is an enlarged view of area I of FIG. 20 according to another embodiment. Specifically, Figure 20 is a plan view showing the components included in the sensing unit (TDU_4) according to another embodiment, and Figures 21 to 24 show various appearances of the sensing connection wires (RL_4) disposed in the sensing area (TSA). These are drawings that represent

Referring to FIG. 20, in this embodiment, unlike the embodiment shown in FIG. 19, each of the sensing connection wires (RL_4) extending in connection with one end of each of the contact electrodes (CE_4) disposed in the sensing area (TSA) The difference is that the arrangement form is different.

Specifically, the first sensing connection wire RL1_4 connected to one end of the first contact electrode CE1_4 disposed in the first row and first column may extend in the second direction (Y-axis direction). That is, the first sensing connection wire RL1_4 extends in the second direction (Y-axis direction) and may overlap in the thickness direction with the first contact electrodes RE_4 and the dummy electrodes DE_4 disposed in the first column. there is.

Referring further to FIGS. 21 and 22 along with FIG. 20, the second sensing connection wires RL2_4 connected to one end of the second contact electrode CE2_4 disposed in the second row and second column are connected to each other in the sensing area TSA. It may include a first sub-connection wire (RL2_4a) and a second sub-connection wire (RL2_4b) having different arrangement forms.

As shown in FIG. 21, the first sub-connection wire RL2_4a is a first part RL2_4a_1 connected to a second sub-connection wire RL2_4b (see FIG. 22), which will be described later, and the end of the first part RL2_4a_1. a second part (RL2_4a_2) extending from the second part (RL2_4a_2), a third part (RL2_4a_3) extending from an end of the second part (RL2_4a_2), and an end of the third part (RL2_4a_3) extending from the end and connected to the second contact electrode (CE2_4) It may include a fourth part (RL2_4a_4).

Specifically, the first part (RL2_4a_1) extends along the second direction (Y-axis direction) and overlaps the first touch electrode (RE_4) in the thickness direction, and one end of the first part (RL2_4a_1) is connected to the second sub-connection wire. It may be connected to (RL2_4b) and the other end may be connected to the second part (RL2_4a_2).

The second part RL2_4a_2 may extend from the end of the first part RL2_4a_1 along a first diagonal direction DR1 that intersects the first direction (X-axis direction) and the second direction (Y-axis direction). That is, the second portion RL2_4a_2 may be disposed along one side of the dummy electrode DE_4 extending along the first diagonal direction DR1.

The third part RL2_4a_3 may extend from an end of the second part RL2_4a_2 along a second diagonal direction DR2 that intersects the first diagonal direction DR1. That is, the third part RL2_4a_3 will be disposed along the other side of the dummy electrode DE_4 extending along the second diagonal direction DR2 from one side of the dummy electrode DE_4 where the second part RL2_4a_2 is disposed. You can.

The fourth part RL2_4a_4 extends along the second direction (Y-axis direction) and overlaps the first touch electrode RE_4 in the thickness direction, and one end of the fourth part RL2_4a_4 is connected to the third part RL2_4a_3. and the other end may be connected to the first touch electrode (RE_4).

As shown in FIGS. 20 and 22, the second sub-connection wire RL2_4b of the second detection connection wire RL2_4 is one of the second detection connection wires disposed adjacent to each other in the second direction (Y-axis direction). A first part (RL2_4b_1) connected to the second sub-connection wire (RL2_4b) of (RL2_4) and a second part extending from the end of the first part (RL2_4b_1) and connected to the above-described first sub-connection wire (RL2_4a) It may include (RL2_4b_2).

Specifically, the first part RL2_4b_1 extends in a first diagonal direction DR1 from the end of the second part RL2_4b_2 of a second sub-connection wire RL2_4b disposed adjacent to it in the second direction (Y-axis direction). It can be extended accordingly. That is, the first portion RL2_4b_1 may be disposed along one side of the first touch electrode RE_4 extending along the first diagonal direction DR1.

The second part RL2_4b_2 may extend from the end of the first part RL2_4b_1 along the second diagonal direction DR2. That is, the second part RL2_4b_2 extends from one side of the first touch electrode RE_4 where the first part RL2_4b_1 is disposed to the other side of the first touch electrode RE_4 along the second diagonal direction DR2. It can be placed according to .

As shown in FIGS. 20 and 23, the third sensing connection wire RL3_4 is a first part RL3_4_1 connected to the third sensing connection wire RL3_4 disposed adjacent to each other in the second direction (Y-axis direction). ), a second part RL3_4_2 extending from the end of the first part RL3_4_1, a third part RL3_4_3 extending from the second part RL3_4_2, and a third contact It may include a fourth part (RL3_4_4) connected to the electrode (CE3_4).

Specifically, the first part RL3_4_1 is located in a first diagonal direction DR1 from the end of the third part RL3_4_3 of a third sensing connection wire RL3_4 disposed adjacent to it in the second direction (Y-axis direction). It can be extended accordingly. That is, the first portion RL3_4_1 may be disposed along one side of the first touch electrode RE_4 extending along the first diagonal direction DR1.

The second part RL3_4_2 may extend from the end of the first part RL3_4_1 along a first direction (X-axis direction). That is, one end of the second part RL3_4_2 extends along the first direction (X-axis direction) from the end of the first part RL3_4_1 and is in the thickness direction with the first touch electrode RE_4 and the dummy electrode DE_4. They can overlap, and the other end of the second part (RL3_4_2) can be connected to the third part (RL3_4_3).

The third part RL3_4_3 may extend from the other end of the second part RL3_4_2 along the second diagonal direction DR2. That is, the third part RL3_4_3 extends from one side of the first touch electrode RE_4 on which the first part RL3_4_1 is disposed to the other side of the first touch electrode RE_4 opposite in the first diagonal direction DR1. It can be arranged accordingly.

One end of the fourth part RL3_4_4 extends along the second direction (Y-axis direction) from the end of the third part RL3_4_3 of a third sensing connection wire RL3_4 adjacent in the second direction (Y-axis direction). and overlaps the first touch electrode (RE_4) in the thickness direction, and the fourth portion (RL3_4_4) may be connected to the third contact electrode (CE_4). However, since the fourth part (RL3_4_4) of the third sensing connection wire (RL3_4) is arranged to be spaced apart from the fourth part (RL3_4_4) in the second direction (Y-axis direction), the third sensing connection wire (RL3_4_4) is not arranged adjacent to the fourth part (RL3_4_4). The third part RL3_4_3 of RL3_4) may be connected to the first part RL3_4_1 of the third sensing connection wire RL3_4 disposed adjacent to it in the second direction (Y-axis direction).

As shown in FIGS. 20 and 24 , the fourth sensing connection wire RL4_4 may overlap the first touch electrode RE_4 in the thickness direction and be disposed in a constant pattern on a plane. For example, the planar pattern of the fourth sensing connection wire RL4_4 may have a mesh shape or a mesh shape having different sizes, as shown in FIGS. 20 and 24 . However, the planar pattern of the fourth sensing connection wire RL4_4 is not limited to this and may be arranged to have various patterns.

The fourth sensing connection wire RL4_4 includes a first part RL4_4_1 extending along the second direction (Y-axis direction), and a plurality of second parts extending from the first part RL4_4_1 along the first diagonal direction DR1. connected to the portions RL4_4_2, a plurality of third portions RL4_4_3 extending from the second portions RL4_4_2 along the second diagonal direction DR2, and ends of the plurality of third portions RL4_4_3; , may include a fourth portion (RL4_4_4) extending along the second direction (Y-axis direction).

Specifically, each of the second parts RL4_4_2 may have different lengths, and each of the second parts RL4_4_2 extends in the first diagonal direction DR1 at a different position from the first part RL4_4_1. It can be.

Like the second parts RL4_4_2, the third parts RL4_4_3 may have different lengths, and each of the third parts RL4_4_3 corresponds to the first touch electrode RE_1 among the plurality of second parts RL4_4_2. ) may extend along the second diagonal direction DR2 at different positions from any second part RL4_4_2 disposed along the side of the .

In addition, each of the plurality of second parts RL4_4_2 and the plurality of third parts RL4_4_3 extends along the first diagonal direction DR1 and the second diagonal direction DR2 and are arranged to intersect each other in the plane. You can. Accordingly, as each of the plurality of second parts RL4_4_2 and the plurality of third parts RL4_4_3 are intersecting each other, the fourth sensing connection wire RL4_4 may have a mesh or net shape in plan view.

The ends of the third parts RL4_4_3 extending along the second diagonal direction DR2 are arranged to be spaced apart from the first part RL4_4_1 in the second direction (Y-axis direction) with the dummy electrode DE_4 interposed therebetween, It may be connected to the fourth part RL4_4_4 extending in the second direction (Y-axis direction). That is, each of the third parts RL4_4_3 extending along the second diagonal direction DR2 may be connected to the fourth part RL4_4_4 at different positions.

In the case of this embodiment, the sensing connection wires RL_4 connected to each of the touch electrodes CE_4 having the same area in the sensing area TSA are arranged in different shapes to minimize the difference in length between each, so that the connection The difference in resistance between the wires RL_4 can be compensated or offset. Accordingly, the touch sensitivity of the first touch electrodes RE_4 disposed in the sensing area TSA can be kept constant.

Figure 25 is an enlarged view of area A of Figure 4 according to another embodiment. Figure 26 is an enlarged view of area I of Figure 25. Figure 27 is an enlarged view of area J of Figure 25. FIG. 28 is a cross-sectional view taken along line VIII-VIII' of FIG. 27.

Referring to FIG. 25, in this embodiment, unlike the embodiment shown in FIGS. 4 and 5, the first touch electrode RE_5 connected to the contact electrode CE_5 among the plurality of first touch electrodes RE_5 is connected to each other. It includes a first dummy electrode (DE1_5) and a second dummy electrode (DE2_5) having different sizes and numbers, and the second touch electrode (TE_5) is different from the first touch electrode (RE_5) connected to the contact electrode (CE_5). , does not include the first dummy electrode DE1_5, and the number of second dummy electrodes DE2_5 included in the second contact electrode TE_5 is included in the first touch electrode RE_5 including the contact electrode CE_5. There is a difference in that it is different from the number of second dummy electrodes (DE2_5).

Additionally, in this embodiment, unlike the embodiment shown in FIGS. 4 and 5, the difference is that dummy patterns DEP are disposed on the sensing connection wires RL_5 connected to one end of the plurality of contact electrodes CE_5. There is.

Specifically, referring to FIGS. 25 and 26 , the dummy electrodes DE_5 may include a first dummy electrode DE1_5 and a second dummy electrode DE2_5 having different planar areas.

The first dummy electrode DE1_5 is electrically separated from the first touch electrodes RE_5 and disposed only on the first touch electrode RE1_5 connected to the contact electrodes CE_5 among the plurality of first touch electrodes RE1_5. Each of the first dummy electrodes DE1_5 may be surrounded by first openings OP1_5.

The second dummy electrode DE2_5 is disposed to be electrically separated from the first touch electrodes RE1_5 and the second touch electrodes TE_5, and each of the second dummy electrodes DE2_5 has second openings OP2_5. can be surrounded by

The planar area of the first dummy electrode DE1_5 may be larger than that of the second dummy electrodes DE2_5, and the number of first dummy electrodes DE1_5 may be less than the number of second dummy electrodes DE2_5. That is, the second dummy electrodes DE2_5 are disposed surrounding the first dummy electrodes DE1_5 in the first touch electrodes RE_5 connected to the contact electrodes CE_5, and are not connected to the contact electrodes CE_5. The first touch electrodes RE_5 and the second touch electrodes TE_5 may be arranged in a matrix form.

The first dummy electrodes DE1_5 may overlap the contact electrodes CE_5 in the thickness direction, and the second dummy electrodes DE2_5 may not overlap the contact electrodes CE_5. For example, as shown in FIGS. 25 and 26, by the first touch electrode RE_5, first contact holes CNT1_5, and second contact holes CNT2_5 disposed in the first row and first column. The connected first contact electrode (CE1_5) may overlap with the first dummy electrodes (DE1_5) and may not overlap with the second dummy electrodes (DE2_5) disposed surrounding the first contact electrode (CE1_5).

The width r1 of the first electrode portion RER1 of the first touch electrode RE_5 including the first dummy electrode DE1_5 and surrounding the second dummy electrodes DE2_5 is defined by the first dummy electrode DE1_5. It does not include the width r2 of the second electrode portion RER2 of the first touch electrode RE_5 surrounding the second dummy electrodes DE2_5 and the second touch electrode surrounding the second dummy electrodes DE2_5 It may be larger than the width r3 of the third electrode portion RER3 of TE_5).

In addition, the width r2 of the second electrode portion RER2 of the first touch electrode RE_5 that does not include the first dummy electrode DE1_5 and the width r2 of the third electrode portion RER3 of the second touch electrode TE_5 The widths (r3) may be equal to each other.

Here, each of the first electrode portion (RER1), the second electrode portion (RER2), and the third electrode portion (RER3) does not include the dummy electrode (DE_5), and the first touch electrode surrounding the dummy electrode (DE_5) It may be (RE_5) and/or an outer area of the second touch electrode (TE_5).

Referring further to FIGS. 27 and 28 along with FIG. 25 , a dummy pattern DEP is formed on the sensing connection wire RL_5 connected to one end of each of the contact electrodes CE_5 and extending in the second direction (Y-axis direction). can be placed.

Specifically, the dummy pattern (DEP) is one end of the first dummy pattern (DEP1) and the second contact electrode (CE2_5) disposed on the first sensing connection wire (RL1_5) connected to one end of the first contact electrode (CE1_5). It may include a second dummy pattern (DEP2) disposed on the second sensing connection wire (RL2_5) connected to .

Each of the dummy patterns DEP disposed on the sensing connection wires RL_5 may be spaced apart from each other along the second direction (Y-axis direction), which is an extension direction of the sensing connection wire RL_5. That is, each of the dummy patterns DEP may be arranged to be spaced apart from each other on the sensing connection wire RL_5 and thus arranged in an island pattern on a planar surface.

Additionally, each of the dummy patterns DEP may be disposed on a different layer from the sensing connection wires RL_5. That is, each of the dummy patterns DEP is disposed on the same layer as the first touch electrodes RE_5, the first dummy electrodes DE1_5, and the second dummy electrodes DE2_5, and the dummy patterns DEP Each of the first touch electrodes RE_5, the first dummy electrodes DE1_5, and the second dummy electrodes DE2_5 is disposed electrically separated from the first touch electrodes RE_5, the first dummy electrodes DE1_5, and the second dummy electrodes DE2_5. It may be electrically insulated from the electrodes DE1_5 and the second dummy electrodes DE2_5.

Additionally, since the dummy patterns DEP have a mesh shape or mesh shape like the sensing connection wire RL_5, the sub-pixels R, G, and B may not overlap the dummy patterns DEP. In FIG. 27 , the first detection connection wire RL5_1 and the first dummy pattern DEP1 disposed on the first detection connection wire RL5_1 are shown as the center, but the second detection connection wire RL5_2 and the second detection connection wire RL5_2 are shown in FIG. The second dummy pattern DEP2 disposed on the wiring RL5_2 may also have the same shape and arrangement.

Specifically, as shown in FIG. 28, the first dummy pattern (DEP1) is disposed on the thin film encapsulation layer (TFEL), and the first sensing connection wire (RL1_5) made of the first sensing conductive layer 171 and the first 1 They overlap in the thickness direction with the sensing insulating layer TIL1 interposed therebetween, and the first dummy pattern DEP1 may be covered by the second sensing insulating layer TIL2.

In addition, the first dummy pattern DEP1 includes the first touch electrode RE_5, the second touch electrode TE_5, the first dummy electrode DE1_5, and the second dummy electrode DE2_5 shown in FIG. 25. It may be made of a second sensing conductive layer 172. However, the present invention is not limited thereto, and the first dummy pattern DEP1 may be made of a different material from the second sensing conductive layer 172.

In FIG. 28 , the explanation is based on the first dummy pattern (DEP1) and the first sensing connection wire (RL1_5), but the explanation is also substantially related to the relationship between the second dummy pattern (DEP2) and the second sensing connection wire (RL2_5). The same can be applied.

In the case of this embodiment, the electrode portion of the first touch electrode (RE_5) overlapping with the contact electrode (CE_5) is removed from the first touch electrode (RE_5) connected to the contact electrode (CE_5), and the first dummy electrode (DE1_5) is removed. ), it is possible to prevent noise generation due to overlapping of the contact electrode (CE_5) and the first touch electrode (RE_5), and a dummy pattern ( DEP) can be placed to prevent noise generation due to the sensing connection wire (RL_5).

Figure 29 is an enlarged view of area A of Figure 4 according to another embodiment.

Referring to FIG. 29, unlike the embodiment shown in FIG. 25, the first dummy electrode DE1_6 is surrounded by first openings OP1_6 even in the first touch electrodes RE_6 that are not connected to the contact electrode CE_6. ) may be disposed to be electrically separated from the first touch electrodes RE1_6. That is, in this embodiment, the first dummy electrodes DE1_6 are also disposed on the first touch electrodes RE_6 that are not connected to the contact electrodes CE_6, and the second dummy electrodes DE2_6 are connected to the first dummy electrodes DE1_6. ) can be placed surrounding the.

Accordingly, unlike the embodiment according to FIG. 25 , the arrangement forms of the first dummy electrodes DE1_6 and the second dummy electrodes DE2_6 in the plurality of first touch electrodes RE_6 may be the same. In other words, the first dummy electrodes DE1_6 and the second dummy electrodes are formed in the first touch electrodes RE_6 on which the contact electrode CE_6 is disposed and the first touch electrodes RE_6 on which the contact electrode CE_6 is not disposed. The arrangement forms of the electrodes DE2_6 may be the same.

Each of the dummy patterns DEP disposed on the sensing connection wire RL_6 connected to one end of each of the contact electrodes CE_6 is located in an area where the first dummy electrodes DE1_6 and the detection connection wire RL_6 overlap. It may not be placed. That is, each of the dummy patterns DEP may not overlap with the first dummy electrodes DE1_6.

Additionally, unlike the embodiment shown in FIG. 25, in this embodiment, the contact electrode CE_6 is disposed, and the first electrode portion RER1 of the first touch electrode RE_6 surrounds the second dummy electrodes DE2_6. The width r1 may be equal to the width r2 of the second electrode portion RER2 of the first touch electrode RE_6 surrounding the second dummy electrodes DE6_5 in which the contact electrode CE_6 is not disposed. there is. That is, since the arrangement form of the first dummy electrode DE1_6 and the second dummy electrode DE2_6 in the first touch electrodes RE_6 are the same, the width r1 of the first electrode portion RER1 and the second electrode portion The width (r2) of (RER2) may be the same.

Accordingly, the width r1 of the first electrode portion RER1 and the width r2 of the second electrode portion RER2 do not include the first dummy electrodes DE1_6 and surround the second dummy electrodes DE2_6. may be larger than the width r3 of the third electrode portion RER3 of the second touch electrode TE_6.

In the case of this embodiment, the first dummy electrode DE_6 is also disposed on the first touch electrode RE_6 where the contact electrode CE_6 is not disposed, so that the first touch electrode RE_6 is disposed in the sensing area TSA. Their patterns can be unified.

Figure 30 is a plan view showing a sensing area of a display device according to another embodiment. Specifically, FIG. 30 is a plan view showing the arrangement of the sensing connection wires RL_7 disposed in the sensing area.

Referring to FIG. 30, unlike the embodiment shown in FIG. 4, in this embodiment, the sensing connection wires (RL_7) connected to the contact electrode (CE_7) and disposed in the sensing area (TSA_7) all have the same length, The difference is that each of the sensing connection wires (RL_7), excluding the first sensing connection wire (RL1_7), is bypassed and connected to the contact electrode (CE_7).

Additionally, this embodiment differs from the embodiment shown in FIG. 4 in that the contact electrodes CE_7 all have the same planar area.

As shown in FIG. 30, each of the sensing connection wires RL_7 is connected to a contact portion CP located at the right vertex based on the center of the contact electrode CE_7 on a plane.

The first sensing connection wire RL1_7 extends in the second direction (Y-axis direction) and is connected to the first contact part CP1, and does not include a bypass portion. On the other hand, each of the sensing connection wires (RL_7) excluding the first sensing connection wire (RL1_7) extends from the first part and the first part extending in the second direction (Y-axis direction), and connects the contact electrode (CE_7). It includes a bypass part that is bypassed and connected to the contact electrode (CE_7).

Specifically, the second sensing connection wire RL2_7 extends in the second direction (Y-axis direction) to the first point (X1) located on the same line as the second contact portion CP2 and the first direction (X-axis direction). A first part (RL2_7a) extending along one direction, a second part (RL2_7b) extending along one direction in the second direction (Y-axis direction) from the first point (X1), A third part (RL2_7c) extending along one direction (X-axis direction), and having the same length as the third part (RL2_7c), from the third part (RL2_7c) to the other direction in the second direction (Y-axis direction) It extends and may include a fourth portion RL2_7d connected to the second contact portion CP2 of the second contact electrode CE2_7.

The third sensing connection wire RL3_7 extends in one direction in the second direction (Y-axis direction) to the second point (X2) located on the same line as the third contact portion CP3 and the first direction (X-axis direction). A first part (RL3_7a) extending along, a second part (RL3_7b) extending along one direction of the second direction (Y-axis direction) from the second point (X2), a first direction (RL3_7b) extending from the second part (RL3_7b) a third part RL3_7c extending along the X-axis direction), and having the same length as the third part RL3_7c, extending from the third part RL3_7c in the other direction of the second direction (Y-axis direction), It may include a fourth portion RL3_7d connected to the third contact portion CP3 of the third contact electrode CE3_7.

The fourth sensing connection wire (RL4_7) extends in one direction in the second direction (Y-axis direction) to the third point (X3) located on the same line along the fourth contact portion (CP4) and the first direction (X-axis direction). A first part RL4_7a extending along, a second part RL4_7b extending along one direction of the second direction (Y-axis direction) from the fourth point A third part (RL4_7c) extending along the X-axis direction), and having the same length as the third part (RL4_7c), extending from the third part (RL4_7c) in the other direction of the second direction (Y-axis direction), It may include a fourth portion RL4_7d connected to the fourth contact portion CP4 of the fourth contact electrode CE4_7.

The fifth sensing connection wire RL5_7 extends in one direction in the second direction (Y-axis direction) to the fourth point (X4) located on the same line as the fifth contact portion CP5 and the first direction (X-axis direction). A first part RL5_7a extending along, a second part RL5_7b extending along one direction of the second direction (Y-axis direction) from the fourth point A third part (RL5_7c) extending along the X-axis direction), and having the same length as the third part (RL5_7c), extending from the third part (RL5_7c) in the other direction of the second direction (Y-axis direction), It may include a fourth portion (RL5_7d) connected to the fifth contact portion (CP5) of the fifth contact electrode (CE5_7).

The length of the first portion of each of the sensing connection wires (RL_7) excluding the first detection connection wire (RL1_7) and the first detection connection wire (RL1_7) disposed in the sensing area (TSA_7) is equal to the length of the first detection connection wire (RL1_7). The length in the second direction (Y-axis direction) may become shorter as it moves from to the fifth sensing connection wire RL5_7.

On the other hand, the sum of the length of the second part, the third part, and the fourth part of each of the sensing connection wires RL_7 excluding the first sensing connection wire RL1_7 is the second sensing connection wire RL2_7 ) may become longer as it goes from the fifth sensing connection wire (RL5_7). That is, the sum of the lengths of the second part, the third part, and the fourth part of each of the detection connection wires RL_7 excluding the first detection connection wire RL1_7 is the fifth detection connection wire RL2_7 in the second detection connection wire RL2_7. It can increase steadily toward the connection wiring (RL5_7).

Specifically, the length of the second part and the fourth part of each of the sensing connection wires (RL_7) except the first sensing connection wire (RL1_7) are the same, and the length of the fourth part is the same, and the length of the second part and the fourth part of each of the sensing connection wires (RL_7) excluding the first sensing connection wire (RL1_7) are the same. The length of the third portion of each of (RL_7) may be the same. However, it is not limited thereto, and each of the sensing connection wires (RL_7) except the first sensing connection wire (RL1_7) has a different length of the second portion and the fourth portion, and the length of the second portion and the fourth portion are different from each other, and the length of the second portion and the fourth portion of each of the sensing connection wirings (RL_7) excluding the first sensing connection wiring (RL1_7) are different. The lengths of the third portions of each of the connection wires (RL_7) are different, and the lengths of the second, third, and fourth portions of each of the sensing connection wires (RL_7) excluding the first sensing connection wire (RL1_7) The sum of may increase steadily from the second sensing connection wire (RL2_7) to the fifth sensing connection wire (RL5_7).

In addition, the length in the second direction (Y-axis direction) of the second and fourth parts of each of the sensing connection wires RL_7, excluding the first sensing connection wire RL1_7, is the second direction (Y-axis direction) from the second sensing connection wire RL2_7. 5 It can increase towards the sensing connection wire (RL5_7). That is, the length in the second direction (Y-axis direction) of the second and fourth parts of each of the sensing connection wires RL_7, excluding the first sensing connection wire RL1_7, is the second direction (Y-axis direction) from the second sensing connection wire RL2_7. 5 As the sensing connection wire RL5_7 progresses, the length of the first touch electrode RE_7 or the second touch electrode TE_7 in the second direction (Y-axis direction) may increase by half.

Here, the length of the first touch electrode (RE_7) or the second touch electrode (TE_7) is the second direction (Y-axis direction) of the first touch electrode (RE_7) or the second touch electrode (TE_7) having a diamond shape in plan. It may refer to the length from a vertex located on one side to a vertex located on the other side in the second direction (Y-axis direction).

Figure 31 is a plan view showing a sensing area of a display device according to another embodiment. FIG. 32 is an enlarged view of area L of FIG. 31. FIG. 33 is an enlarged view of area L of FIG. 31 according to another embodiment.

Specifically, FIG. 31 is a plan view showing some of the sensing connection wires RL_8 disposed in the sensing area TSA_8 according to another embodiment. For example, among the plurality of first touch electrodes RE_8, the third contact electrode CE3_8 is disposed in the third row and third column, the fourth contact electrode CE3_8 is disposed in the fourth row and fourth column, and the fifth row. This is a plan view showing the arrangement of the third sensing connection wire (RL3_8), the fourth sensing connection wire (RL4_8), and the fifth sensing connection wire (RL5_8) connected to each of the fifth contact electrodes (CE5_8) arranged in the fifth row. .

According to the embodiment shown in FIGS. 31 to 33, unlike the embodiment shown in FIG. 30, there is a difference in that the sensing connection wires RL_8 arranged in the sensing area TSA_8 are arranged differently.

31 and 32, the lengths of the third sensing connection wires RL3_8 to RL5_8 are the same, and the third sensing connection wires RL3_8 to RL5_8 are disposed on the sensing area TSA_8. The arrangement form of the fifth sensing connection wire RL5_8 may be different.

Specifically, the third sensing connection wire RL3_8 is a first sub-sensing connection wire RL3_8a extending in one direction of the second direction (Y-axis direction), extending from the first sub-sensing connection wire RL3_8a. A second sub-sensing connection wire (RL3_8b) that has a bent shape as shown and is disposed along the side of the first touch electrode (RE_8) connected to the third contact electrode (CE3_8), and a second sub-sensing connection wire (RL3_8b) ) and may include a third sub-sensing connection wire RL3_8c that extends from the dummy electrode DE_8 and includes a portion overlapping the dummy electrode DE_8 and a portion disposed along the side of the dummy electrode DE_8.

The third sub-sensing connection wire (RL3_8c) of the third sensing connection wire (RL3_8) is connected to the end of the second sub-sensing connection wire (RL3_8b) and overlaps the first touch electrode (RE_8) and the dummy electrode (DE_8). , a first part RL3_8c_1 extending in one direction of the second direction (Y-axis direction), a dummy electrode connected to the end of the first part RL3_8c_1 and extending in one direction of the second diagonal direction DR2 A second part (RL3_8c_2) disposed along the side of DE_8, a third part (RL3_8c_2) connected to the end of the second part (RL3_8c_2), overlapping with the dummy electrode (DE_8) and extending in the first direction (X-axis direction) RL3_8c_3), a fourth part (RL3_8c_4) connected to the end of the third part (RL3_8c_3) and disposed along the side of the dummy electrode (DE_8) extending in the other direction of the first diagonal direction (DR1), and the fourth part It is connected to the end of (RL3_8c_4), overlaps the first touch electrode (RE_8) and the dummy electrode (DE_8), extends in the other direction of the second direction (Y-axis direction), and is connected to the third contact electrode (CE3_8). It may include a fourth part (RL3_8c_4).

The fourth sensing connection wire (RL4_8) is a first sub-sensing connection wire (RL4_8a) extending in one direction of the second direction (Y-axis direction), and extends from the first sub-sensing connection wire (RL4_8a) as ">". The second sub-sensing connection wire RL4_8b has a bent shape and is disposed along the side of the first touch electrode RE_8 connected to the fourth contact electrode CE4_8, and extends from the second sub-sensing connection wire RL4_8b. and may include a third sub-sensing connection wire RL4_8c including a portion overlapping with the dummy electrode DE_8 and a portion disposed along a side of the dummy electrode DE_8.

The third sub-sensing connection wire (RL4_8c) of the fourth sensing connection wire (RL4_8) is connected to the end of the second sub-sensing connection wire (RL4_8b) and overlaps the first touch electrode (RE_8) and the dummy electrode (DE_8). , a first part RL4_8c_1 extending in one direction of the second direction (Y-axis direction), a second part connected to the end of the first part RL4_8c_1 and disposed to surround all sides of the dummy electrode DE_8. (RL4_8c_2), and is connected to the end of the second part (RL4_8c_2), overlaps the first touch electrode (RE_8) and the dummy electrode (DE_8), and extends in the other direction of the second direction (Y-axis direction) to form a fourth It may include a third part (RL3_8c_3) connected to the contact electrode (CE4_8).

The fifth sensing connection wire (RL5_8) is a first sub-sensing connection wire (RL5_8a) extending in one direction of the second direction (Y-axis direction), and extends from the first sub-sensing connection wire (RL5_8a) as ">". The second sub-sensing connection wire RL5_8b has a bent shape and is disposed along the side of the first touch electrode RE_8 connected to the fifth contact electrode CE5_8, and extends from the second sub-sensing connection wire RL5_8b. and may include a third sub-sensing connection wire RL5_8c including a portion overlapping with the dummy electrode DE_8 and a portion disposed along a side of the dummy electrode DE_8.

The third sub-sensing connection wire (RL5_8c) of the fifth sensing connection wire (RL5_8) is connected to the end of the second sub-sensing connection wire (RL5_8b) and overlaps the first touch electrode (RE_8) and the dummy electrode (DE_8). , a first part RL5_8c_1 extending in one direction of the second direction (Y-axis direction), a dummy electrode connected to the end of the first part RL5_8c_1 and extending in one direction of the second diagonal direction DR2 A second part (RL5_8c_2) disposed along the side of DE_8, a third part (RL5_8c_2) connected to the end of the second part (RL5_8c_2), overlapping with the dummy electrode (DE_8) and extending in the first direction (X-axis direction) RL5_8c_3), a fourth part (RL5_8c_4) connected to the end of the third part (RL5_8c_3) and disposed along the side of the dummy electrode (DE_8) extending in the other direction of the first diagonal direction (DR1), and the fourth part It is connected to the end of (RL5_8c_4), overlaps the first touch electrode (RE_8) and the dummy electrode (DE_8), extends in the other direction of the second direction (Y-axis direction), and is connected to the fifth contact electrode (CE5_8) It may include a fourth part (RL5_8c_4).

Here, the dummy electrode DE_8 on which the second part (RL5_8c_2), the third part (RL5_8c_3), and the fourth part (RL5_8c_4) are disposed is the third sub-connection wire (RL4_8c) of the fourth sensing connection wire (RL4_8) described above. The second part RL4_8c_2 may be adjacent to the surrounding dummy electrode DE_8 in the first direction (X-axis direction). However, it is not limited to this.

The fifth sensing connection wire (RL5_8) has the same shape and length as the third sensing connection wire (RL3_8) and is disposed on the sensing area (TSA_8), but extends in the second direction (Y-axis direction). The length of the first sub-sensing connection wire RL3_8a of RL3_8 may be longer than the length of the first sub-sensing connection wire RL5_8a of the fifth sensing connection wire RL5_8.

In addition, the first part (RL3_8c_1) and the fourth part (RL3_8c_4) of the third sub-sensing connection wire (RL3_8c) of the third sensing connection wire (RL3_8) extending in one direction and the other direction of the second direction (Y-axis direction) ) The first part (RL5_8c_1) and the fourth part of the third sub-sensing connection wire (RL5_8c) of the fifth detection connection wire (RL5_8) whose length extends in one direction and the other direction of the second direction (Y-axis direction) As it is shorter than the length of (RL5_8c_4), the length of the third sensing connection wire (RL3_8) and the length of the fifth sensing connection wire (RL5_8) may be substantially the same.

33 is an enlarged view showing the arrangement of the third sub-connection wire RL4_8c of the fourth sensing connection wire RL4_8 and the third sub-connection wire RL5_8c of the fifth sensing connection wire RL5_8 according to another embodiment. It is also a degree.

Referring to FIG. 33, unlike the embodiment shown in FIG. 32, an electrode is disposed along the side of the dummy electrode DE_8 to adjust the length of the fourth detection connection wire RL4_8 and the fifth detection connection wire RL5_8. There is a difference in that the arrangement form of the third sub-sensing connection wire RL4_8c of the fourth sensing connection wire RL4_8 and the third sub-sensing connection wire RL5_8c of the fifth sensing connection wire RL5_8 are different.

Specifically, the third sub-sensing connection wire RL4_8c of the fourth sensing connection wire RL4_8 includes a first part RL4_8c_1 extending along one direction of the second direction (Y-axis direction), and a first part RL4_8c_1. A second part RL4_8c_2 disposed along the side of the dummy electrode DE_8 extending along one direction of the second diagonal direction DR2, connected to the end of the second part RL4_8c_2, and connected to the first part RL4_8c_2. A third part (RL4_8c_3) disposed along the side of the dummy electrode (DE_8) extending along one direction of the diagonal direction (DR1), connected to the end of the third part (RL4_8c_3), and in the first direction (X-axis direction) A fourth part (RL4_8c_4) extending to, a fifth part connected to the end of the fourth part (RL4_8c_4) and extending along the side of the dummy electrode (DE_8) extending along the other direction of the second diagonal direction (DR2) (RL4_8c_5), connected to the end of the fifth part (RL4_8c_5), and connected to the end of the sixth part (RL4_8c_6) and the sixth part (RL4_8c_6) extending along the other direction of the first diagonal direction (DR1), It may include a seventh part (RL4_8c_7) extending in the other direction of the second direction (Y-axis direction). Accordingly, unlike the embodiment shown in FIG. 32, a portion of the side surface of the dummy electrode DE_8 may be exposed and may be disposed along the side of the dummy electrode DE_8.

Additionally, in the embodiment shown in FIG. 32, the third portion RL5_8c_3 of the third sub-sensing connection wire RL5_8c of the fifth detection connection wire RL5_8 is a dummy adjacent to each other in the first direction (X-axis direction). Unlike extending in the first direction (X-axis direction) by connecting the end of the second part (RL_8c_2) and the end of the fourth part (RL_8c_4) located at the vertex of the electrode (DE_8), in this embodiment, the fifth detection The third part RL5_8c_3 of the third sub-sensing connection wire RL5_8c of the connection wire RL5_8 is a second part located on the side of the dummy electrode DE_8 extending in one direction of the second diagonal direction DR2 ( It connects the end of RL5_8c_2) and the end of the fourth part RL5_8c_4 located on the side of the dummy electrode DE_8 extending in the other direction of the first diagonal direction DR1 and extends in the first direction (X-axis direction). There is a difference in that respect.

In the case of the embodiment according to FIGS. 30 to 33, the difference in length of the sensing connection wires disposed in the sensing area is minimized to compensate or offset the resistance due to the difference in the length of the sensing connection wire, thereby increasing the touch sensitivity of the touch electrode disposed in the sensing area. The difference can be reduced.

Figure 34 is a plan view showing a sensing area of a display device according to another embodiment.

Referring to FIG. 34, unlike the embodiment shown in FIG. 32, it is different in that it includes a plurality of dummy wires (DEL). That is, in this embodiment, it is disposed on the sensing area (TSA_9) and has the same plane as each part of the third sensing connection wire (RL3_8), the fourth sensing connection wire (RL4_8), and the fifth sensing connection wire (RL5_8). A first dummy wire (DEL1), a second dummy wire (DEL2), and a third dummy wire ( DEL3) may be included.

Specifically, the first dummy wire DEL1 extends in the second direction (Y-axis direction), and extends in the first direction (X-axis direction) with the first sub-sensing connection wire RL3_8a of the third detection connection wire RL3_8. A first sub-dummy wire (DEL1_a) is spaced apart and arranged symmetrically, is connected to the end of the first sub-dummy wire (DEL1_a), has a bent shape like "<", and is connected to the third contact electrode (CE3_8). A second sub-dummy wire ( DEL1_b), and the third sub-sensing connection wire (RL3_8c) of the third detection connection wire (RL3_8), and having the same arrangement shape in plan as the third sub-sensing connection wire (RL3_8c) of the third detection connection wire (RL3_8). and a third sub-dummy line DEL1_c that is symmetrically disposed in the second direction (Y-axis direction).

The second dummy wire DEL2 extends in the second direction (Y-axis direction) and is spaced apart from the first sub-sensing connection wire RL4_8a of the fourth detection connection wire RL4_8 in the first direction (X-axis direction). A symmetrically arranged first sub-dummy wire (DEL2_a), connected to the end of the first sub-dummy wire (DEL2_a), has a bent shape like "<", and is connected to the fourth contact electrode (CE4_8). A second sub-dummy wire (DEL2_b) disposed symmetrically in the first direction (X-axis direction) with the second sub-sensing connection wire (RL4_8b) of the fourth detection connection wire (RL4_4) along the side of the electrode (RE_8), and a shape that is the same in plan as the third sub-sensing connection wire (RL4_8c) of the fourth detection connection wire (RL4_8), and is aligned in a second direction with the third sub-sensing connection wire (RL4_8c) of the fourth detection connection wire (RL4_8). It may include a third sub-dummy wire (DEL2_c) arranged symmetrically in the (Y-axis direction).

The third dummy wire DEL3 extends in the second direction (Y-axis direction) and is spaced apart from the first sub-sensing connection wire RL5_8a of the fifth detection connection wire RL5_8 in the first direction (X-axis direction). A first sub-dummy wire (DEL3_a) is arranged symmetrically, is connected to the end of the first sub-dummy wire (DEL3_a) and has a bent shape like "<", and has a fifth contact electrode (CE5_8) disposed thereon. A second sub-sense connection wire (RL5_8b) of the fifth detection connection wire (RL5_8) and a second sub-dummy wire (DEL3_b) disposed symmetrically in the first direction (X-axis direction) along the side of the touch electrode (RE_8). , and has the same arrangement form as the third sub-sensing connection wire (RL5_8c) of the fifth detection connection wire (RL5_8), and is disposed in the second direction with the third sub-sensing connection wire (RL5_8c) of the fifth detection connection wire (RL5_8). It may include a third sub-dummy wire (DEL3_c) that is symmetrically arranged in the (Y-axis direction).

As such, a dummy wire that has the same arrangement form as the plurality of sensing connection wires (RL_8) arranged as a single wire or a plurality of wires on the sensing area (TSA_9) and is arranged symmetrically with each of the sensing connection wires (RL_8) (DEL) can prevent the irregular pattern caused by the sensing connection wires (RL_8) disposed on the sensing area (TSA_9) from being recognized.

Although embodiments of the present invention have been described above with reference to the attached drawings, those skilled in the art will understand that the present invention can be implemented in other specific forms without changing its technical idea or essential features. You will be able to understand it. Therefore, the embodiments described above should be understood in all respects as illustrative and not restrictive.

10: display device 100: display panel
TSL: Sensing layer TSA: Sensing area
TPA: Sensing surrounding area TSL: Sensing layer
RE: first touch electrode TE: second touch electrode
CE: Contact electrode RL: Sensing connection wiring
TL: Drive connection wiring DE: Dummy electrode
EP: Contact electrode portion EOP: Electrode opening portion
DP: Protrusion DEP: Dummy pattern
DEL: Dummy wiring

Claims (23)

Board;
a light emitting device layer disposed on the substrate and including light emitting devices;
an encapsulation layer disposed on the light emitting device layer; and
Provided with a sensor electrode layer disposed on the encapsulation layer,
The sensor electrode layer is,
a plurality of first touch electrode groups extending along a first direction and arranged along a second direction intersecting the first direction;
A plurality of first touch electrodes arranged along the first direction in each of the plurality of first touch electrode groups,
a plurality of second touch electrode groups extending along the second direction and arranged along the first direction,
A first contact electrode connected to any one of the first touch electrodes of the plurality of first touch electrodes of any one of the plurality of first touch electrode groups, and
A second contact electrode connected to one of the first touch electrodes of the plurality of first touch electrodes of another first touch electrode group among the plurality of first touch electrode groups,
A display device in which an area of the first contact electrode is larger than an area of the second contact electrode. According to claim 1,
A first connection wire connected to the first contact electrode, and
Further comprising a second connection wire connected to the second contact electrode,
The sensor electrode layer includes a sensing area and a peripheral area surrounding the sensing area,
The first connection wire and the second connection wire in the sensing area extend along the second direction,
The display device wherein the length of the first connection wire in the second direction is longer than the length of the second connection wire in the second direction. According to clause 2,
The first contact electrode and the second contact electrode are disposed on a different layer from the first touch electrode and the second touch electrode,
The first contact electrode and the second contact electrode are disposed on the same layer as the first connection wire and the second connection wire. According to claim 1,
It further includes a plurality of dummy electrodes located on the same layer as second touch electrodes included in each of the plurality of first touch electrodes and the plurality of second touch electrode groups,
Each of the plurality of first touch electrodes includes a first opening,
Each of the plurality of second touch electrodes includes a second opening,
The plurality of dummy electrodes are respectively located in the first opening and the second opening,
The display device wherein the plurality of dummy electrodes overlap the first contact electrode and the second contact electrode. According to clause 4,
The first contact electrode includes a first electrode opening and a first contact electrode portion surrounding the first electrode opening,
The second contact electrode includes a second electrode opening and a second contact electrode portion surrounding the second electrode opening,
A display device in which an area of the first contact electrode portion is larger than an area of the second contact electrode portion. According to clause 5,
The plurality of dummy electrodes overlap each of the first electrode opening and the second electrode opening,
The display device wherein the plurality of dummy electrodes do not overlap with each of the first contact electrode portion and the second contact electrode portion. Board;
a light emitting device layer disposed on the substrate and including light emitting devices;
an encapsulation layer disposed on the light emitting device layer; and
Provided with a sensor electrode layer disposed on the encapsulation layer,
The sensor electrode layer is,
a plurality of first touch electrodes extending along a first direction and arranged along a second direction intersecting the first direction;
a plurality of second touch electrodes extending along the second direction and arranged along the first direction,
First dummy electrodes located on the plurality of first touch electrodes and the plurality of second touch electrodes,
A contact electrode connected to one of the plurality of first touch electrodes,
Located on one of the first touch electrodes,
Having a different area from the first dummy electrodes and overlapping with the contact electrode,
a second dummy electrode surrounded by the first dummy electrodes,
A first touch electrode portion surrounding the first dummy electrode in one of the first touch electrodes,
A second touch electrode portion surrounding the first dummy electrodes in another of the first touch electrodes, and
A display device including a third touch electrode portion surrounding the first dummy electrodes in the second touch electrodes. According to clause 7,
The sensor electrode layer includes a sensing area and a peripheral area surrounding the sensing area,
a connection wire connected to the contact electrode in the sensing area and extending in the second direction; and
Further comprising a dummy pattern disposed on the connection wire in the sensing area,
The display device wherein the dummy pattern is arranged in an island shape on a plane along the second direction. According to clause 7,
A display device in which the width of the first touch electrode portion is greater than the width of the second touch electrode portion and the width of the third touch electrode portion. According to clause 7,
Located on the other first touch electrodes,
Further comprising the second dummy electrode surrounded by the first dummy electrodes,
The width of the first touch electrode portion and the width of the second touch electrode portion are the same,
A display device in which the width of the first touch electrode portion and the width of the second touch electrode portion are greater than the width of the third touch electrode portion. Board;
a light emitting device layer disposed on the substrate and including light emitting devices;
an encapsulation layer disposed on the light emitting device layer; and
A sensor electrode layer is disposed on the encapsulation layer and includes a sensing area and a peripheral area surrounding the sensing area,
The sensor electrode layer is,
a plurality of first touch electrode groups extending along a first direction and arranged along a second direction intersecting the first direction;
A plurality of first touch electrodes arranged along the first direction in each of the plurality of first touch electrode groups,
a plurality of second touch electrode groups extending along the second direction and arranged along the first direction,
A first contact electrode connected to one of the first touch electrodes of the plurality of first touch electrodes of any one of the plurality of first touch electrode groups,
A second contact electrode connected to one of the first touch electrodes of the plurality of first touch electrodes of another first touch electrode group among the plurality of first touch electrode groups,
A first connection wire connected to the first contact electrode in the sensing area, and
Includes a second connection wire connected to the second contact electrode in the sensing area,
The display device wherein the area of the first contact electrode and the area of the second contact electrode are the same. According to claim 11,
A display device in which the width of the first connection wire is greater than the width of the second connection wire. According to claim 11,
The first connection wire includes a plurality of first protrusions,
The second connection wire includes a plurality of second protrusions,
The display device wherein the number of first protrusions of the first connection wire is greater than the number of second protrusions of the second connection wire. According to claim 11,
The first connection wire includes a plurality of first protrusions,
The second connection wire includes a plurality of second protrusions,
The number of first protrusions and the number of second protrusions are the same,
A display device in which a planar area of each of the first protrusions is larger than a planar area of each of the second protrusions. According to claim 11,
The first connection wire extends in the second direction,
The second connection wiring is,
a plurality of first sub-connection wires extending in the second direction;
a plurality of second sub-connection wires extending from an end of the first sub-connection wire in a third direction diagonal to the first direction and the second direction, and
A display device comprising a plurality of third sub-connection wires extending from an end of the second sub-connection wire in a fourth direction perpendicular to the third direction. According to claim 15,
A display device in which the plurality of second sub-connection wires and the plurality of third sub-connection wires intersect each other on a plane. According to claim 11,
A display device in which the length of the first connection wire and the length of the second connection wire are the same. According to claim 17,
The second connection wiring is,
a first sub-connection wire extending in one direction of the second direction;
a second sub-connection wire extending in a direction other than the second direction and connected to the second contact electrode; and
It includes a third sub-connection wire connecting the first sub-connection wire and the second sub-connection wire,
A first length over which the first sub-connection wire of the second connection wire and the second sub-connection wire of the second connection wire overlap in the second direction is the length of the first connection wire and the second connection wire. A display device equal to the difference in length of the first sub-connection wire. According to clause 18,
A third contact electrode connected to any one of the first touch electrodes of another first touch electrode group among the plurality of first touch electrode groups, and
Further comprising a third connection wire connected to the third contact electrode and extending along the second direction,
The third connection wiring is,
a first sub-connection wiring extending in the one direction of the second direction;
a second sub-connection wire extending in a direction other than the second direction and connected to the third contact electrode; and
It includes a third sub-connection wire connecting the first sub-connection wire and the second sub-connection wire,
The difference between the first length and the second length overlapping between the first sub-connection wire of the third connection wire and the second sub-connection wire of the third connection wire in the second direction is the difference between the first length and the second length of the third connection wire. It is equal to the difference between the length of the first sub-connection wire and the second connection wire,
A display device in which the length of the third connection wire is the same as the length of the second connection wire. According to claim 11,
Further comprising a plurality of dummy electrodes located on the same layer as the plurality of first touch electrodes,
The first connection wiring is,
a first sub-connection wire extending in one direction of the second direction;
a second sub-connection wire connected to an end of the first sub-connection wire and bypassing the first touch electrode connected to the first contact electrode; and
One end is connected to the second sub-connection wire, and the other end includes a third sub-connection wire connected to the first contact electrode,
The third sub-connection wiring is,
a first part connected to an end of the second sub-connection wire and extending in the one direction of the second direction;
A second part connected to an end of the first part and extending along a third direction that is a diagonal direction intersecting the first direction and the second direction,
A third part connected to the end of the second part and extending along the first direction,
a fourth part connected to an end of the third part and extending along a fourth direction perpendicular to the third direction, and
A display device including a fifth part extending in a direction other than the second direction, one end of which is connected to an end of the fourth part, and the other end of which is connected to the first contact electrode. According to claim 20,
The second connection wiring is,
a first sub-connection wire extending in one direction of the second direction;
a second sub-connection wire connected to an end of the first sub-connection wire and bypassing the first touch electrode connected to the second contact electrode;
One end is connected to the second sub-connection wire, and the other end includes a third sub-connection wire connected to the second contact electrode,
The third sub-connection wiring is,
a first part connected to an end of the second sub-connection wire and extending in one direction of the second direction;
A second part connected to an end of the first part and surrounding a side of one of the plurality of dummy electrodes disposed in the same row as the first touch electrode connected to the second contact electrode, and
A display device including a third part extending toward the other side in the second direction, one end of which is connected to an end of the second part, and the other end of which is connected to the second contact electrode. According to claim 21,
The plurality of dummy electrodes are,
The first touch electrode connected to the first contact electrode and a first dummy electrode adjacent in one direction of the second direction, and
A first touch electrode connected to the first contact electrode with the first dummy electrode interposed therebetween, and a second dummy electrode disposed to be spaced apart in one direction of the second direction,
The first portion of the third sub-connection wire overlaps the first dummy electrode,
The second part, the third part, and the fourth part of the third sub-connection wire overlap the second dummy electrode,
The fifth portion of the third sub-connection wire overlaps the first dummy electrode,
A display device disposed to be spaced apart from the first portion of the third sub-connection wire in the first direction. According to claim 21,
Further comprising a first dummy wire and a second dummy wire disposed in the sensing area,
The first dummy wiring is,
a first sub-dummy wire disposed symmetrically in the first direction with the first sub-connection wire of the first connection wire;
a second sub-dummy wire arranged symmetrically in the first direction with the second sub-connection wire of the first connection wire, and
It includes the third sub-connection wire of the first connection wire and a third sub-dummy wire arranged symmetrically in the one direction of the second direction,
The second dummy wiring is,
a first sub-dummy wire disposed symmetrically in the first direction with the first sub-connection wire of the second connection wire;
a second sub-dummy wire arranged symmetrically in the first direction with the second sub-connection wire of the first connection wire, and
A display device including the third sub-connection wire of the first connection wire and a third sub-dummy wire symmetrically disposed in one direction of the second direction.

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